31639413

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{421}}^1$

素因数の和:525

約数の個数: 32

約数和(自身を含む): 47642112

約数和(自身を除く): 16002699

約数列:

[1, 3, 13, 39, 41, 47, 123, 141, 421, 533, 611, 1263, 1599, 1833, 1927, 5473, 5781, 16419, 17261, 19787, 25051, 51783, 59361, 75153, 224393, 257231, 673179, 771693, 811267, 2433801, 10546471, 31639413]

約数ペア:

[(1, 31639413), (3, 10546471), (13, 2433801), (39, 811267), (41, 771693), (47, 673179), (123, 257231), (141, 224393), (421, 75153), (533, 59361), (611, 51783), (1263, 25051), (1599, 19787), (1833, 17261), (1927, 16419), (5473, 5781)]