21000427904

素因数分解:

$2^7\times {\mathrm{59}}^1\times {\mathrm{2780777}}^1$

素因数の和:2780850

約数の個数: 32

約数和(自身を含む): 42545903400

約数和(自身を除く): 21545475496

約数列:

[1, 2, 4, 8, 16, 32, 59, 64, 118, 128, 236, 472, 944, 1888, 3776, 7552, 2780777, 5561554, 11123108, 22246216, 44492432, 88984864, 164065843, 177969728, 328131686, 355939456, 656263372, 1312526744, 2625053488, 5250106976, 10500213952, 21000427904]

約数ペア:

[(1, 21000427904), (2, 10500213952), (4, 5250106976), (8, 2625053488), (16, 1312526744), (32, 656263372), (59, 355939456), (64, 328131686), (118, 177969728), (128, 164065843), (236, 88984864), (472, 44492432), (944, 22246216), (1888, 11123108), (3776, 5561554), (7552, 2780777)]