21138870

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{4073}}^1$

素因数の和:4256

約数の個数: 32

約数和(自身を含む): 51039072

約数和(自身を除く): 29900202

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 173, 346, 519, 865, 1038, 1730, 2595, 4073, 5190, 8146, 12219, 20365, 24438, 40730, 61095, 122190, 704629, 1409258, 2113887, 3523145, 4227774, 7046290, 10569435, 21138870]

約数ペア:

[(1, 21138870), (2, 10569435), (3, 7046290), (5, 4227774), (6, 3523145), (10, 2113887), (15, 1409258), (30, 704629), (173, 122190), (346, 61095), (519, 40730), (865, 24438), (1038, 20365), (1730, 12219), (2595, 8146), (4073, 5190)]