20918366

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{307}}^1$

素因数の和:504

約数の個数: 32

約数和(自身を含む): 37373952

約数和(自身を除く): 16455586

約数列:

[1, 2, 7, 14, 31, 62, 157, 217, 307, 314, 434, 614, 1099, 2149, 2198, 4298, 4867, 9517, 9734, 19034, 34069, 48199, 66619, 68138, 96398, 133238, 337393, 674786, 1494169, 2988338, 10459183, 20918366]

約数ペア:

[(1, 20918366), (2, 10459183), (7, 2988338), (14, 1494169), (31, 674786), (62, 337393), (157, 133238), (217, 96398), (307, 68138), (314, 66619), (434, 48199), (614, 34069), (1099, 19034), (2149, 9734), (2198, 9517), (4298, 4867)]