18958264

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{10723}}^1$

素因数の和:10759

約数の個数: 32

約数和(自身を含む): 40536720

約数和(自身を除く): 21578456

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 442, 884, 1768, 10723, 21446, 42892, 85784, 139399, 182291, 278798, 364582, 557596, 729164, 1115192, 1458328, 2369783, 4739566, 9479132, 18958264]

約数ペア:

[(1, 18958264), (2, 9479132), (4, 4739566), (8, 2369783), (13, 1458328), (17, 1115192), (26, 729164), (34, 557596), (52, 364582), (68, 278798), (104, 182291), (136, 139399), (221, 85784), (442, 42892), (884, 21446), (1768, 10723)]