21941460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1543}}^1$

素因数の和:1637

約数の個数: 72

約数和(自身を含む): 67441920

約数和(自身を除く): 45500460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 79, 90, 158, 180, 237, 316, 395, 474, 711, 790, 948, 1185, 1422, 1543, 1580, 2370, 2844, 3086, 3555, 4629, 4740, 6172, 7110, 7715, 9258, 13887, 14220, 15430, 18516, 23145, 27774, 30860, 46290, 55548, 69435, 92580, 121897, 138870, 243794, 277740, 365691, 487588, 609485, 731382, 1097073, 1218970, 1462764, 1828455, 2194146, 2437940, 3656910, 4388292, 5485365, 7313820, 10970730, 21941460]

約数ペア:

[(1, 21941460), (2, 10970730), (3, 7313820), (4, 5485365), (5, 4388292), (6, 3656910), (9, 2437940), (10, 2194146), (12, 1828455), (15, 1462764), (18, 1218970), (20, 1097073), (30, 731382), (36, 609485), (45, 487588), (60, 365691), (79, 277740), (90, 243794), (158, 138870), (180, 121897), (237, 92580), (316, 69435), (395, 55548), (474, 46290), (711, 30860), (790, 27774), (948, 23145), (1185, 18516), (1422, 15430), (1543, 14220), (1580, 13887), (2370, 9258), (2844, 7715), (3086, 7110), (3555, 6172), (4629, 4740)]