21341190

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{54721}}^1$

素因数の和:54744

約数の個数: 32

約数和(自身を含む): 55159776

約数和(自身を除く): 33818586

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 54721, 109442, 164163, 273605, 328326, 547210, 711373, 820815, 1422746, 1641630, 2134119, 3556865, 4268238, 7113730, 10670595, 21341190]

約数ペア:

[(1, 21341190), (2, 10670595), (3, 7113730), (5, 4268238), (6, 3556865), (10, 2134119), (13, 1641630), (15, 1422746), (26, 820815), (30, 711373), (39, 547210), (65, 328326), (78, 273605), (130, 164163), (195, 109442), (390, 54721)]