665377438

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{19937}}^1$

素因数の和:20028

約数の個数: 32

約数和(自身を含む): 1145557728

約数和(自身を除く): 480180290

約数列:

[1, 2, 11, 22, 37, 41, 74, 82, 407, 451, 814, 902, 1517, 3034, 16687, 19937, 33374, 39874, 219307, 438614, 737669, 817417, 1475338, 1634834, 8114359, 8991587, 16228718, 17983174, 30244429, 60488858, 332688719, 665377438]

約数ペア:

[(1, 665377438), (2, 332688719), (11, 60488858), (22, 30244429), (37, 17983174), (41, 16228718), (74, 8991587), (82, 8114359), (407, 1634834), (451, 1475338), (814, 817417), (902, 737669), (1517, 438614), (3034, 219307), (16687, 39874), (19937, 33374)]