21902320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{24889}}^1$

素因数の和:24913

約数の個数: 40

約数和(自身を含む): 55554480

約数和(自身を除く): 33652160

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 24889, 49778, 99556, 124445, 199112, 248890, 273779, 398224, 497780, 547558, 995560, 1095116, 1368895, 1991120, 2190232, 2737790, 4380464, 5475580, 10951160, 21902320]

約数ペア:

[(1, 21902320), (2, 10951160), (4, 5475580), (5, 4380464), (8, 2737790), (10, 2190232), (11, 1991120), (16, 1368895), (20, 1095116), (22, 995560), (40, 547558), (44, 497780), (55, 398224), (80, 273779), (88, 248890), (110, 199112), (176, 124445), (220, 99556), (440, 49778), (880, 24889)]