19728524

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{389}}^1\times {\mathrm{409}}^1$

素因数の和:833

約数の個数: 24

約数和(自身を含む): 35817600

約数和(自身を除く): 16089076

約数列:

[1, 2, 4, 31, 62, 124, 389, 409, 778, 818, 1556, 1636, 12059, 12679, 24118, 25358, 48236, 50716, 159101, 318202, 636404, 4932131, 9864262, 19728524]

約数ペア:

[(1, 19728524), (2, 9864262), (4, 4932131), (31, 636404), (62, 318202), (124, 159101), (389, 50716), (409, 48236), (778, 25358), (818, 24118), (1556, 12679), (1636, 12059)]