21854085

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6971}}^1$

素因数の和:7009

約数の個数: 32

約数和(自身を含む): 40158720

約数和(自身を除く): 18304635

約数列:

[1, 3, 5, 11, 15, 19, 33, 55, 57, 95, 165, 209, 285, 627, 1045, 3135, 6971, 20913, 34855, 76681, 104565, 132449, 230043, 383405, 397347, 662245, 1150215, 1456939, 1986735, 4370817, 7284695, 21854085]

約数ペア:

[(1, 21854085), (3, 7284695), (5, 4370817), (11, 1986735), (15, 1456939), (19, 1150215), (33, 662245), (55, 397347), (57, 383405), (95, 230043), (165, 132449), (209, 104565), (285, 76681), (627, 34855), (1045, 20913), (3135, 6971)]