21684135

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{1163}}^1$

素因数の和:1295

約数の個数: 32

約数和(自身を含む): 38216448

約数和(自身を除く): 16532313

約数列:

[1, 3, 5, 11, 15, 33, 55, 113, 165, 339, 565, 1163, 1243, 1695, 3489, 3729, 5815, 6215, 12793, 17445, 18645, 38379, 63965, 131419, 191895, 394257, 657095, 1445609, 1971285, 4336827, 7228045, 21684135]

約数ペア:

[(1, 21684135), (3, 7228045), (5, 4336827), (11, 1971285), (15, 1445609), (33, 657095), (55, 394257), (113, 191895), (165, 131419), (339, 63965), (565, 38379), (1163, 18645), (1243, 17445), (1695, 12793), (3489, 6215), (3729, 5815)]