51879568

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{249421}}^1$

素因数の和:249442

約数の個数: 20

約数和(自身を含む): 108249148

約数和(自身を除く): 56369580

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 249421, 498842, 997684, 1995368, 3242473, 3990736, 6484946, 12969892, 25939784, 51879568]

約数ペア:

[(1, 51879568), (2, 25939784), (4, 12969892), (8, 6484946), (13, 3990736), (16, 3242473), (26, 1995368), (52, 997684), (104, 498842), (208, 249421)]