28821494

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{331}}^1$

素因数の和:560

約数の個数: 32

約数和(自身を含む): 49696416

約数和(自身を除く): 20874922

約数列:

[1, 2, 13, 17, 26, 34, 197, 221, 331, 394, 442, 662, 2561, 3349, 4303, 5122, 5627, 6698, 8606, 11254, 43537, 65207, 73151, 87074, 130414, 146302, 847691, 1108519, 1695382, 2217038, 14410747, 28821494]

約数ペア:

[(1, 28821494), (2, 14410747), (13, 2217038), (17, 1695382), (26, 1108519), (34, 847691), (197, 146302), (221, 130414), (331, 87074), (394, 73151), (442, 65207), (662, 43537), (2561, 11254), (3349, 8606), (4303, 6698), (5122, 5627)]