21341376580

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{26026069}}^1$

素因数の和:26026119

約数の個数: 24

約数和(自身を含む): 45909987480

約数和(自身を除く): 24568610900

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 26026069, 52052138, 104104276, 130130345, 260260690, 520521380, 1067068829, 2134137658, 4268275316, 5335344145, 10670688290, 21341376580]

約数ペア:

[(1, 21341376580), (2, 10670688290), (4, 5335344145), (5, 4268275316), (10, 2134137658), (20, 1067068829), (41, 520521380), (82, 260260690), (164, 130130345), (205, 104104276), (410, 52052138), (820, 26026069)]