21824040

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{25981}}^1$

素因数の和:26002

約数の個数: 64

約数和(自身を含む): 74828160

約数和(自身を除く): 53004120

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, 25981, 51962, 77943, 103924, 129905, 155886, 181867, 207848, 259810, 311772, 363734, 389715, 519620, 545601, 623544, 727468, 779430, 909335, 1039240, 1091202, 1454936, 1558860, 1818670, 2182404, 2728005, 3117720, 3637340, 4364808, 5456010, 7274680, 10912020, 21824040]

約数ペア:

[(1, 21824040), (2, 10912020), (3, 7274680), (4, 5456010), (5, 4364808), (6, 3637340), (7, 3117720), (8, 2728005), (10, 2182404), (12, 1818670), (14, 1558860), (15, 1454936), (20, 1091202), (21, 1039240), (24, 909335), (28, 779430), (30, 727468), (35, 623544), (40, 545601), (42, 519620), (56, 389715), (60, 363734), (70, 311772), (84, 259810), (105, 207848), (120, 181867), (140, 155886), (168, 129905), (210, 103924), (280, 77943), (420, 51962), (840, 25981)]