21742760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41813}}^1$

素因数の和:41837

約数の個数: 32

約数和(自身を含む): 52685640

約数和(自身を除く): 30942880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 41813, 83626, 167252, 209065, 334504, 418130, 543569, 836260, 1087138, 1672520, 2174276, 2717845, 4348552, 5435690, 10871380, 21742760]

約数ペア:

[(1, 21742760), (2, 10871380), (4, 5435690), (5, 4348552), (8, 2717845), (10, 2174276), (13, 1672520), (20, 1087138), (26, 836260), (40, 543569), (52, 418130), (65, 334504), (104, 209065), (130, 167252), (260, 83626), (520, 41813)]