21755916

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{229}}^1$

素因数の和:288

約数の個数: 144

約数和(自身を含む): 70324800

約数和(自身を除く): 48568884

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 29, 36, 39, 42, 52, 58, 63, 78, 84, 87, 91, 116, 117, 126, 156, 174, 182, 203, 229, 234, 252, 261, 273, 348, 364, 377, 406, 458, 468, 522, 546, 609, 687, 754, 812, 819, 916, 1044, 1092, 1131, 1218, 1374, 1508, 1603, 1638, 1827, 2061, 2262, 2436, 2639, 2748, 2977, 3206, 3276, 3393, 3654, 4122, 4524, 4809, 5278, 5954, 6412, 6641, 6786, 7308, 7917, 8244, 8931, 9618, 10556, 11908, 13282, 13572, 14427, 15834, 17862, 19236, 19923, 20839, 23751, 26564, 26793, 28854, 31668, 35724, 39846, 41678, 46487, 47502, 53586, 57708, 59769, 62517, 79692, 83356, 86333, 92974, 95004, 107172, 119538, 125034, 139461, 172666, 185948, 187551, 239076, 250068, 258999, 278922, 345332, 375102, 418383, 517998, 557844, 604331, 750204, 776997, 836766, 1035996, 1208662, 1553994, 1673532, 1812993, 2417324, 3107988, 3625986, 5438979, 7251972, 10877958, 21755916]

約数ペア:

[(1, 21755916), (2, 10877958), (3, 7251972), (4, 5438979), (6, 3625986), (7, 3107988), (9, 2417324), (12, 1812993), (13, 1673532), (14, 1553994), (18, 1208662), (21, 1035996), (26, 836766), (28, 776997), (29, 750204), (36, 604331), (39, 557844), (42, 517998), (52, 418383), (58, 375102), (63, 345332), (78, 278922), (84, 258999), (87, 250068), (91, 239076), (116, 187551), (117, 185948), (126, 172666), (156, 139461), (174, 125034), (182, 119538), (203, 107172), (229, 95004), (234, 92974), (252, 86333), (261, 83356), (273, 79692), (348, 62517), (364, 59769), (377, 57708), (406, 53586), (458, 47502), (468, 46487), (522, 41678), (546, 39846), (609, 35724), (687, 31668), (754, 28854), (812, 26793), (819, 26564), (916, 23751), (1044, 20839), (1092, 19923), (1131, 19236), (1218, 17862), (1374, 15834), (1508, 14427), (1603, 13572), (1638, 13282), (1827, 11908), (2061, 10556), (2262, 9618), (2436, 8931), (2639, 8244), (2748, 7917), (2977, 7308), (3206, 6786), (3276, 6641), (3393, 6412), (3654, 5954), (4122, 5278), (4524, 4809)]