21000409028

素因数分解:

$2^2\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{808081}}^1$

素因数の和:808247

約数の個数: 24

約数和(自身を含む): 37672782840

約数和(自身を除く): 16672373812

約数列:

[1, 2, 4, 73, 89, 146, 178, 292, 356, 6497, 12994, 25988, 808081, 1616162, 3232324, 58989913, 71919209, 117979826, 143838418, 235959652, 287676836, 5250102257, 10500204514, 21000409028]

約数ペア:

[(1, 21000409028), (2, 10500204514), (4, 5250102257), (73, 287676836), (89, 235959652), (146, 143838418), (178, 117979826), (292, 71919209), (356, 58989913), (6497, 3232324), (12994, 1616162), (25988, 808081)]