21113810

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1\times {\mathrm{269}}^1$

素因数の和:490

約数の個数: 32

約数和(自身を含む): 39191040

約数和(自身を除く): 18077230

約数列:

[1, 2, 5, 10, 47, 94, 167, 235, 269, 334, 470, 538, 835, 1345, 1670, 2690, 7849, 12643, 15698, 25286, 39245, 44923, 63215, 78490, 89846, 126430, 224615, 449230, 2111381, 4222762, 10556905, 21113810]

約数ペア:

[(1, 21113810), (2, 10556905), (5, 4222762), (10, 2111381), (47, 449230), (94, 224615), (167, 126430), (235, 89846), (269, 78490), (334, 63215), (470, 44923), (538, 39245), (835, 25286), (1345, 15698), (1670, 12643), (2690, 7849)]