21886190

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{35879}}^1$

素因数の和:35947

約数の個数: 16

約数和(自身を含む): 40042080

約数和(自身を除く): 18155890

約数列:

[1, 2, 5, 10, 61, 122, 305, 610, 35879, 71758, 179395, 358790, 2188619, 4377238, 10943095, 21886190]

約数ペア:

[(1, 21886190), (2, 10943095), (5, 4377238), (10, 2188619), (61, 358790), (122, 179395), (305, 71758), (610, 35879)]