21456204

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{2111}}^1$

素因数の和:2147

約数の個数: 72

約数和(自身を含む): 62920704

約数和(自身を除く): 41464500

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 66, 77, 84, 121, 132, 154, 231, 242, 308, 363, 462, 484, 726, 847, 924, 1452, 1694, 2111, 2541, 3388, 4222, 5082, 6333, 8444, 10164, 12666, 14777, 23221, 25332, 29554, 44331, 46442, 59108, 69663, 88662, 92884, 139326, 162547, 177324, 255431, 278652, 325094, 487641, 510862, 650188, 766293, 975282, 1021724, 1532586, 1788017, 1950564, 3065172, 3576034, 5364051, 7152068, 10728102, 21456204]

約数ペア:

[(1, 21456204), (2, 10728102), (3, 7152068), (4, 5364051), (6, 3576034), (7, 3065172), (11, 1950564), (12, 1788017), (14, 1532586), (21, 1021724), (22, 975282), (28, 766293), (33, 650188), (42, 510862), (44, 487641), (66, 325094), (77, 278652), (84, 255431), (121, 177324), (132, 162547), (154, 139326), (231, 92884), (242, 88662), (308, 69663), (363, 59108), (462, 46442), (484, 44331), (726, 29554), (847, 25332), (924, 23221), (1452, 14777), (1694, 12666), (2111, 10164), (2541, 8444), (3388, 6333), (4222, 5082)]