18997204

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{389}}^1\times {\mathrm{421}}^1$

素因数の和:843

約数の個数: 24

約数和(自身を含む): 34561800

約数和(自身を除く): 15564596

約数列:

[1, 2, 4, 29, 58, 116, 389, 421, 778, 842, 1556, 1684, 11281, 12209, 22562, 24418, 45124, 48836, 163769, 327538, 655076, 4749301, 9498602, 18997204]

約数ペア:

[(1, 18997204), (2, 9498602), (4, 4749301), (29, 655076), (58, 327538), (116, 163769), (389, 48836), (421, 45124), (778, 24418), (842, 22562), (1556, 12209), (1684, 11281)]