21251412

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{499}}^1$

素因数の和:542

約数の個数: 108

約数和(自身を含む): 66612000

約数和(自身を除く): 45360588

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 42, 52, 63, 78, 84, 91, 117, 126, 156, 169, 182, 234, 252, 273, 338, 364, 468, 499, 507, 546, 676, 819, 998, 1014, 1092, 1183, 1497, 1521, 1638, 1996, 2028, 2366, 2994, 3042, 3276, 3493, 3549, 4491, 4732, 5988, 6084, 6487, 6986, 7098, 8982, 10479, 10647, 12974, 13972, 14196, 17964, 19461, 20958, 21294, 25948, 31437, 38922, 41916, 42588, 45409, 58383, 62874, 77844, 84331, 90818, 116766, 125748, 136227, 168662, 181636, 233532, 252993, 272454, 337324, 408681, 505986, 544908, 590317, 758979, 817362, 1011972, 1180634, 1517958, 1634724, 1770951, 2361268, 3035916, 3541902, 5312853, 7083804, 10625706, 21251412]

約数ペア:

[(1, 21251412), (2, 10625706), (3, 7083804), (4, 5312853), (6, 3541902), (7, 3035916), (9, 2361268), (12, 1770951), (13, 1634724), (14, 1517958), (18, 1180634), (21, 1011972), (26, 817362), (28, 758979), (36, 590317), (39, 544908), (42, 505986), (52, 408681), (63, 337324), (78, 272454), (84, 252993), (91, 233532), (117, 181636), (126, 168662), (156, 136227), (169, 125748), (182, 116766), (234, 90818), (252, 84331), (273, 77844), (338, 62874), (364, 58383), (468, 45409), (499, 42588), (507, 41916), (546, 38922), (676, 31437), (819, 25948), (998, 21294), (1014, 20958), (1092, 19461), (1183, 17964), (1497, 14196), (1521, 13972), (1638, 12974), (1996, 10647), (2028, 10479), (2366, 8982), (2994, 7098), (3042, 6986), (3276, 6487), (3493, 6084), (3549, 5988), (4491, 4732)]