21317436

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{2917}}^1$

素因数の和:2963

約数の個数: 72

約数和(自身を含む): 63729120

約数和(自身を除く): 42411684

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 29, 36, 42, 58, 63, 84, 87, 116, 126, 174, 203, 252, 261, 348, 406, 522, 609, 812, 1044, 1218, 1827, 2436, 2917, 3654, 5834, 7308, 8751, 11668, 17502, 20419, 26253, 35004, 40838, 52506, 61257, 81676, 84593, 105012, 122514, 169186, 183771, 245028, 253779, 338372, 367542, 507558, 592151, 735084, 761337, 1015116, 1184302, 1522674, 1776453, 2368604, 3045348, 3552906, 5329359, 7105812, 10658718, 21317436]

約数ペア:

[(1, 21317436), (2, 10658718), (3, 7105812), (4, 5329359), (6, 3552906), (7, 3045348), (9, 2368604), (12, 1776453), (14, 1522674), (18, 1184302), (21, 1015116), (28, 761337), (29, 735084), (36, 592151), (42, 507558), (58, 367542), (63, 338372), (84, 253779), (87, 245028), (116, 183771), (126, 169186), (174, 122514), (203, 105012), (252, 84593), (261, 81676), (348, 61257), (406, 52506), (522, 40838), (609, 35004), (812, 26253), (1044, 20419), (1218, 17502), (1827, 11668), (2436, 8751), (2917, 7308), (3654, 5834)]