18447688

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1$

素因数の和:266

約数の個数: 64

約数和(自身を含む): 41564160

約数和(自身を除く): 23116472

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 47, 56, 86, 94, 163, 172, 188, 301, 326, 329, 344, 376, 602, 652, 658, 1141, 1204, 1304, 1316, 2021, 2282, 2408, 2632, 4042, 4564, 7009, 7661, 8084, 9128, 14018, 14147, 15322, 16168, 28036, 28294, 30644, 49063, 53627, 56072, 56588, 61288, 98126, 107254, 113176, 196252, 214508, 329423, 392504, 429016, 658846, 1317692, 2305961, 2635384, 4611922, 9223844, 18447688]

約数ペア:

[(1, 18447688), (2, 9223844), (4, 4611922), (7, 2635384), (8, 2305961), (14, 1317692), (28, 658846), (43, 429016), (47, 392504), (56, 329423), (86, 214508), (94, 196252), (163, 113176), (172, 107254), (188, 98126), (301, 61288), (326, 56588), (329, 56072), (344, 53627), (376, 49063), (602, 30644), (652, 28294), (658, 28036), (1141, 16168), (1204, 15322), (1304, 14147), (1316, 14018), (2021, 9128), (2282, 8084), (2408, 7661), (2632, 7009), (4042, 4564)]