21523866

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{499}}^1$

素因数の和:603

約数の個数: 64

約数和(自身を含む): 53760000

約数和(自身を除く): 32236134

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 79, 91, 158, 182, 237, 273, 474, 499, 546, 553, 998, 1027, 1106, 1497, 1659, 2054, 2994, 3081, 3318, 3493, 6162, 6487, 6986, 7189, 10479, 12974, 14378, 19461, 20958, 21567, 38922, 39421, 43134, 45409, 78842, 90818, 118263, 136227, 236526, 272454, 275947, 512473, 551894, 827841, 1024946, 1537419, 1655682, 3074838, 3587311, 7174622, 10761933, 21523866]

約数ペア:

[(1, 21523866), (2, 10761933), (3, 7174622), (6, 3587311), (7, 3074838), (13, 1655682), (14, 1537419), (21, 1024946), (26, 827841), (39, 551894), (42, 512473), (78, 275947), (79, 272454), (91, 236526), (158, 136227), (182, 118263), (237, 90818), (273, 78842), (474, 45409), (499, 43134), (546, 39421), (553, 38922), (998, 21567), (1027, 20958), (1106, 19461), (1497, 14378), (1659, 12974), (2054, 10479), (2994, 7189), (3081, 6986), (3318, 6487), (3493, 6162)]