18969008

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{69739}}^1$

素因数の和:69764

約数の個数: 20

約数和(自身を含む): 38914920

約数和(自身を除く): 19945912

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 69739, 139478, 278956, 557912, 1115824, 1185563, 2371126, 4742252, 9484504, 18969008]

約数ペア:

[(1, 18969008), (2, 9484504), (4, 4742252), (8, 2371126), (16, 1185563), (17, 1115824), (34, 557912), (68, 278956), (136, 139478), (272, 69739)]