21130872

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1723}}^1$

素因数の和:1812

約数の個数: 64

約数和(自身を含む): 61236480

約数和(自身を除く): 40105608

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 73, 84, 146, 168, 219, 292, 438, 511, 584, 876, 1022, 1533, 1723, 1752, 2044, 3066, 3446, 4088, 5169, 6132, 6892, 10338, 12061, 12264, 13784, 20676, 24122, 36183, 41352, 48244, 72366, 96488, 125779, 144732, 251558, 289464, 377337, 503116, 754674, 880453, 1006232, 1509348, 1760906, 2641359, 3018696, 3521812, 5282718, 7043624, 10565436, 21130872]

約数ペア:

[(1, 21130872), (2, 10565436), (3, 7043624), (4, 5282718), (6, 3521812), (7, 3018696), (8, 2641359), (12, 1760906), (14, 1509348), (21, 1006232), (24, 880453), (28, 754674), (42, 503116), (56, 377337), (73, 289464), (84, 251558), (146, 144732), (168, 125779), (219, 96488), (292, 72366), (438, 48244), (511, 41352), (584, 36183), (876, 24122), (1022, 20676), (1533, 13784), (1723, 12264), (1752, 12061), (2044, 10338), (3066, 6892), (3446, 6132), (4088, 5169)]