18587738

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{197}}^1$

素因数の和:422

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 13345702

約数列:

[1, 2, 13, 19, 26, 38, 191, 197, 247, 382, 394, 494, 2483, 2561, 3629, 3743, 4966, 5122, 7258, 7486, 37627, 47177, 48659, 75254, 94354, 97318, 489151, 714913, 978302, 1429826, 9293869, 18587738]

約数ペア:

[(1, 18587738), (2, 9293869), (13, 1429826), (19, 978302), (26, 714913), (38, 489151), (191, 97318), (197, 94354), (247, 75254), (382, 48659), (394, 47177), (494, 37627), (2483, 7486), (2561, 7258), (3629, 5122), (3743, 4966)]