18649072

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{89659}}^1$

素因数の和:89680

約数の個数: 20

約数和(自身を含む): 38912440

約数和(自身を除く): 20263368

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 89659, 179318, 358636, 717272, 1165567, 1434544, 2331134, 4662268, 9324536, 18649072]

約数ペア:

[(1, 18649072), (2, 9324536), (4, 4662268), (8, 2331134), (13, 1434544), (16, 1165567), (26, 717272), (52, 358636), (104, 179318), (208, 89659)]