21301964

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{2207}}^1$

素因数の和:2357

約数の個数: 24

約数和(自身を含む): 39567360

約数和(自身を除く): 18265396

約数列:

[1, 2, 4, 19, 38, 76, 127, 254, 508, 2207, 2413, 4414, 4826, 8828, 9652, 41933, 83866, 167732, 280289, 560578, 1121156, 5325491, 10650982, 21301964]

約数ペア:

[(1, 21301964), (2, 10650982), (4, 5325491), (19, 1121156), (38, 560578), (76, 280289), (127, 167732), (254, 83866), (508, 41933), (2207, 9652), (2413, 8828), (4414, 4826)]