20996912157

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{311}}^1\times {\mathrm{55843}}^1$

素因数の和:56201

約数の個数: 32

約数和(自身を含む): 31222603776

約数和(自身を除く): 10225691619

約数列:

[1, 3, 13, 31, 39, 93, 311, 403, 933, 1209, 4043, 9641, 12129, 28923, 55843, 125333, 167529, 375999, 725959, 1731133, 2177877, 5193399, 17367173, 22504729, 52101519, 67514187, 225773249, 538382363, 677319747, 1615147089, 6998970719, 20996912157]

約数ペア:

[(1, 20996912157), (3, 6998970719), (13, 1615147089), (31, 677319747), (39, 538382363), (93, 225773249), (311, 67514187), (403, 52101519), (933, 22504729), (1209, 17367173), (4043, 5193399), (9641, 2177877), (12129, 1731133), (28923, 725959), (55843, 375999), (125333, 167529)]