21013190

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{661}}^1$

素因数の和:713

約数の個数: 48

約数和(自身を含む): 43898544

約数和(自身を除く): 22885354

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 110, 170, 187, 289, 374, 578, 661, 935, 1322, 1445, 1870, 2890, 3179, 3305, 6358, 6610, 7271, 11237, 14542, 15895, 22474, 31790, 36355, 56185, 72710, 112370, 123607, 191029, 247214, 382058, 618035, 955145, 1236070, 1910290, 2101319, 4202638, 10506595, 21013190]

約数ペア:

[(1, 21013190), (2, 10506595), (5, 4202638), (10, 2101319), (11, 1910290), (17, 1236070), (22, 955145), (34, 618035), (55, 382058), (85, 247214), (110, 191029), (170, 123607), (187, 112370), (289, 72710), (374, 56185), (578, 36355), (661, 31790), (935, 22474), (1322, 15895), (1445, 14542), (1870, 11237), (2890, 7271), (3179, 6610), (3305, 6358)]