21749636

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{223}}^1\times {\mathrm{659}}^1$

素因数の和:923

約数の個数: 24

約数和(自身を含む): 39325440

約数和(自身を除く): 17575804

約数列:

[1, 2, 4, 37, 74, 148, 223, 446, 659, 892, 1318, 2636, 8251, 16502, 24383, 33004, 48766, 97532, 146957, 293914, 587828, 5437409, 10874818, 21749636]

約数ペア:

[(1, 21749636), (2, 10874818), (4, 5437409), (37, 587828), (74, 293914), (148, 146957), (223, 97532), (446, 48766), (659, 33004), (892, 24383), (1318, 16502), (2636, 8251)]