21409668

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{53}}^1\times {\mathrm{229}}^1$

素因数の和:306

約数の個数: 108

約数和(自身を含む): 64422540

約数和(自身を除く): 43012872

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 53, 63, 84, 98, 106, 126, 147, 159, 196, 212, 229, 252, 294, 318, 371, 441, 458, 477, 588, 636, 687, 742, 882, 916, 954, 1113, 1374, 1484, 1603, 1764, 1908, 2061, 2226, 2597, 2748, 3206, 3339, 4122, 4452, 4809, 5194, 6412, 6678, 7791, 8244, 9618, 10388, 11221, 12137, 13356, 14427, 15582, 19236, 22442, 23373, 24274, 28854, 31164, 33663, 36411, 44884, 46746, 48548, 57708, 67326, 72822, 84959, 93492, 100989, 109233, 134652, 145644, 169918, 201978, 218466, 254877, 339836, 403956, 436932, 509754, 594713, 764631, 1019508, 1189426, 1529262, 1784139, 2378852, 3058524, 3568278, 5352417, 7136556, 10704834, 21409668]

約数ペア:

[(1, 21409668), (2, 10704834), (3, 7136556), (4, 5352417), (6, 3568278), (7, 3058524), (9, 2378852), (12, 1784139), (14, 1529262), (18, 1189426), (21, 1019508), (28, 764631), (36, 594713), (42, 509754), (49, 436932), (53, 403956), (63, 339836), (84, 254877), (98, 218466), (106, 201978), (126, 169918), (147, 145644), (159, 134652), (196, 109233), (212, 100989), (229, 93492), (252, 84959), (294, 72822), (318, 67326), (371, 57708), (441, 48548), (458, 46746), (477, 44884), (588, 36411), (636, 33663), (687, 31164), (742, 28854), (882, 24274), (916, 23373), (954, 22442), (1113, 19236), (1374, 15582), (1484, 14427), (1603, 13356), (1764, 12137), (1908, 11221), (2061, 10388), (2226, 9618), (2597, 8244), (2748, 7791), (3206, 6678), (3339, 6412), (4122, 5194), (4452, 4809)]