21403804976

素因数分解:

$2^4\times {\mathrm{157}}^1\times {\mathrm{8520623}}^1$

素因数の和:8520788

約数の個数: 20

約数和(自身を含む): 41734016352

約数和(自身を除く): 20330211376

約数列:

[1, 2, 4, 8, 16, 157, 314, 628, 1256, 2512, 8520623, 17041246, 34082492, 68164984, 136329968, 1337737811, 2675475622, 5350951244, 10701902488, 21403804976]

約数ペア:

[(1, 21403804976), (2, 10701902488), (4, 5350951244), (8, 2675475622), (16, 1337737811), (157, 136329968), (314, 68164984), (628, 34082492), (1256, 17041246), (2512, 8520623)]