21906812

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{8707}}^1$

素因数の和:8765

約数の個数: 24

約数和(自身を含む): 41693904

約数和(自身を除く): 19787092

約数列:

[1, 2, 4, 17, 34, 37, 68, 74, 148, 629, 1258, 2516, 8707, 17414, 34828, 148019, 296038, 322159, 592076, 644318, 1288636, 5476703, 10953406, 21906812]

約数ペア:

[(1, 21906812), (2, 10953406), (4, 5476703), (17, 1288636), (34, 644318), (37, 592076), (68, 322159), (74, 296038), (148, 148019), (629, 34828), (1258, 17414), (2516, 8707)]