31325697

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{419}}^1$

素因数の和:515

約数の個数: 40

約数和(自身を含む): 51226560

約数和(自身を除く): 19900863

約数列:

[1, 3, 9, 13, 27, 39, 71, 81, 117, 213, 351, 419, 639, 923, 1053, 1257, 1917, 2769, 3771, 5447, 5751, 8307, 11313, 16341, 24921, 29749, 33939, 49023, 74763, 89247, 147069, 267741, 386737, 441207, 803223, 1160211, 2409669, 3480633, 10441899, 31325697]

約数ペア:

[(1, 31325697), (3, 10441899), (9, 3480633), (13, 2409669), (27, 1160211), (39, 803223), (71, 441207), (81, 386737), (117, 267741), (213, 147069), (351, 89247), (419, 74763), (639, 49023), (923, 33939), (1053, 29749), (1257, 24921), (1917, 16341), (2769, 11313), (3771, 8307), (5447, 5751)]