21254226

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{3863}}^1$

素因数の和:4006

約数の個数: 32

約数和(自身を含む): 48964608

約数和(自身を除く): 27710382

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 131, 262, 393, 786, 917, 1834, 2751, 3863, 5502, 7726, 11589, 23178, 27041, 54082, 81123, 162246, 506053, 1012106, 1518159, 3036318, 3542371, 7084742, 10627113, 21254226]

約数ペア:

[(1, 21254226), (2, 10627113), (3, 7084742), (6, 3542371), (7, 3036318), (14, 1518159), (21, 1012106), (42, 506053), (131, 162246), (262, 81123), (393, 54082), (786, 27041), (917, 23178), (1834, 11589), (2751, 7726), (3863, 5502)]