21049812

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{11933}}^1$

素因数の和:11957

約数の個数: 54

約数和(自身を含む): 61901658

約数和(自身を除く): 40851846

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 98, 126, 147, 196, 252, 294, 441, 588, 882, 1764, 11933, 23866, 35799, 47732, 71598, 83531, 107397, 143196, 167062, 214794, 250593, 334124, 429588, 501186, 584717, 751779, 1002372, 1169434, 1503558, 1754151, 2338868, 3007116, 3508302, 5262453, 7016604, 10524906, 21049812]

約数ペア:

[(1, 21049812), (2, 10524906), (3, 7016604), (4, 5262453), (6, 3508302), (7, 3007116), (9, 2338868), (12, 1754151), (14, 1503558), (18, 1169434), (21, 1002372), (28, 751779), (36, 584717), (42, 501186), (49, 429588), (63, 334124), (84, 250593), (98, 214794), (126, 167062), (147, 143196), (196, 107397), (252, 83531), (294, 71598), (441, 47732), (588, 35799), (882, 23866), (1764, 11933)]