21438522

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{229}}^1\times {\mathrm{743}}^1$

素因数の和:987

約数の個数: 48

約数和(自身を含む): 53389440

約数和(自身を除く): 31950918

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 229, 458, 687, 743, 1374, 1486, 1603, 2061, 2229, 3206, 4122, 4458, 4809, 5201, 6687, 9618, 10402, 13374, 14427, 15603, 28854, 31206, 46809, 93618, 170147, 340294, 510441, 1020882, 1191029, 1531323, 2382058, 3062646, 3573087, 7146174, 10719261, 21438522]

約数ペア:

[(1, 21438522), (2, 10719261), (3, 7146174), (6, 3573087), (7, 3062646), (9, 2382058), (14, 1531323), (18, 1191029), (21, 1020882), (42, 510441), (63, 340294), (126, 170147), (229, 93618), (458, 46809), (687, 31206), (743, 28854), (1374, 15603), (1486, 14427), (1603, 13374), (2061, 10402), (2229, 9618), (3206, 6687), (4122, 5201), (4458, 4809)]