31489953

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{257}}^1$

素因数の和:397

約数の個数: 32

約数和(自身を含む): 47554560

約数和(自身を除く): 16064607

約数列:

[1, 3, 11, 33, 47, 79, 141, 237, 257, 517, 771, 869, 1551, 2607, 2827, 3713, 8481, 11139, 12079, 20303, 36237, 40843, 60909, 122529, 132869, 223333, 398607, 669999, 954241, 2862723, 10496651, 31489953]

約数ペア:

[(1, 31489953), (3, 10496651), (11, 2862723), (33, 954241), (47, 669999), (79, 398607), (141, 223333), (237, 132869), (257, 122529), (517, 60909), (771, 40843), (869, 36237), (1551, 20303), (2607, 12079), (2827, 11139), (3713, 8481)]