21557844

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{11}}^2\times {\mathrm{101}}^1$

素因数の和:147

約数の個数: 162

約数和(自身を含む): 70366842

約数和(自身を除く): 48808998

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 28, 33, 36, 42, 44, 49, 63, 66, 77, 84, 98, 99, 101, 121, 126, 132, 147, 154, 196, 198, 202, 231, 242, 252, 294, 303, 308, 363, 396, 404, 441, 462, 484, 539, 588, 606, 693, 707, 726, 847, 882, 909, 924, 1078, 1089, 1111, 1212, 1386, 1414, 1452, 1617, 1694, 1764, 1818, 2121, 2156, 2178, 2222, 2541, 2772, 2828, 3234, 3333, 3388, 3636, 4242, 4356, 4444, 4851, 4949, 5082, 5929, 6363, 6468, 6666, 7623, 7777, 8484, 9702, 9898, 9999, 10164, 11858, 12221, 12726, 13332, 14847, 15246, 15554, 17787, 19404, 19796, 19998, 23331, 23716, 24442, 25452, 29694, 30492, 31108, 35574, 36663, 39996, 44541, 46662, 48884, 53361, 54439, 59388, 69993, 71148, 73326, 85547, 89082, 93324, 106722, 108878, 109989, 139986, 146652, 163317, 171094, 178164, 213444, 217756, 219978, 256641, 279972, 326634, 342188, 439956, 489951, 513282, 598829, 653268, 769923, 979902, 1026564, 1197658, 1539846, 1796487, 1959804, 2395316, 3079692, 3592974, 5389461, 7185948, 10778922, 21557844]

約数ペア:

[(1, 21557844), (2, 10778922), (3, 7185948), (4, 5389461), (6, 3592974), (7, 3079692), (9, 2395316), (11, 1959804), (12, 1796487), (14, 1539846), (18, 1197658), (21, 1026564), (22, 979902), (28, 769923), (33, 653268), (36, 598829), (42, 513282), (44, 489951), (49, 439956), (63, 342188), (66, 326634), (77, 279972), (84, 256641), (98, 219978), (99, 217756), (101, 213444), (121, 178164), (126, 171094), (132, 163317), (147, 146652), (154, 139986), (196, 109989), (198, 108878), (202, 106722), (231, 93324), (242, 89082), (252, 85547), (294, 73326), (303, 71148), (308, 69993), (363, 59388), (396, 54439), (404, 53361), (441, 48884), (462, 46662), (484, 44541), (539, 39996), (588, 36663), (606, 35574), (693, 31108), (707, 30492), (726, 29694), (847, 25452), (882, 24442), (909, 23716), (924, 23331), (1078, 19998), (1089, 19796), (1111, 19404), (1212, 17787), (1386, 15554), (1414, 15246), (1452, 14847), (1617, 13332), (1694, 12726), (1764, 12221), (1818, 11858), (2121, 10164), (2156, 9999), (2178, 9898), (2222, 9702), (2541, 8484), (2772, 7777), (2828, 7623), (3234, 6666), (3333, 6468), (3388, 6363), (3636, 5929), (4242, 5082), (4356, 4949), (4444, 4851)]