30945971

素因数分解:

$7^1\times {\mathrm{23}}^2\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:251

約数の個数: 24

約数和(自身を含む): 37851744

約数和(自身を除く): 6905773

約数列:

[1, 7, 23, 61, 137, 161, 427, 529, 959, 1403, 3151, 3703, 8357, 9821, 22057, 32269, 58499, 72473, 192211, 225883, 507311, 1345477, 4420853, 30945971]

約数ペア:

[(1, 30945971), (7, 4420853), (23, 1345477), (61, 507311), (137, 225883), (161, 192211), (427, 72473), (529, 58499), (959, 32269), (1403, 22057), (3151, 9821), (3703, 8357)]