21958440

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{26141}}^1$

素因数の和:26162

約数の個数: 64

約数和(自身を含む): 75288960

約数和(自身を除く): 53330520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 26141, 52282, 78423, 104564, 130705, 156846, 182987, 209128, 261410, 313692, 365974, 392115, 522820, 548961, 627384, 731948, 784230, 914935, 1045640, 1097922, 1463896, 1568460, 1829870, 2195844, 2744805, 3136920, 3659740, 4391688, 5489610, 7319480, 10979220, 21958440]

約数ペア:

[(1, 21958440), (2, 10979220), (3, 7319480), (4, 5489610), (5, 4391688), (6, 3659740), (7, 3136920), (8, 2744805), (10, 2195844), (12, 1829870), (14, 1568460), (15, 1463896), (20, 1097922), (21, 1045640), (24, 914935), (28, 784230), (30, 731948), (35, 627384), (40, 548961), (42, 522820), (56, 392115), (60, 365974), (70, 313692), (84, 261410), (105, 209128), (120, 182987), (140, 156846), (168, 130705), (210, 104564), (280, 78423), (420, 52282), (840, 26141)]