21357924

素因数分解:

$2^2\times 3^1\times 7^3\times {\mathrm{5189}}^1$

素因数の和:5217

約数の個数: 48

約数和(自身を含む): 58128000

約数和(自身を除く): 36770076

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 294, 343, 588, 686, 1029, 1372, 2058, 4116, 5189, 10378, 15567, 20756, 31134, 36323, 62268, 72646, 108969, 145292, 217938, 254261, 435876, 508522, 762783, 1017044, 1525566, 1779827, 3051132, 3559654, 5339481, 7119308, 10678962, 21357924]

約数ペア:

[(1, 21357924), (2, 10678962), (3, 7119308), (4, 5339481), (6, 3559654), (7, 3051132), (12, 1779827), (14, 1525566), (21, 1017044), (28, 762783), (42, 508522), (49, 435876), (84, 254261), (98, 217938), (147, 145292), (196, 108969), (294, 72646), (343, 62268), (588, 36323), (686, 31134), (1029, 20756), (1372, 15567), (2058, 10378), (4116, 5189)]