21395706

素因数分解:

$2^1\times 3^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1\times {\mathrm{167}}^1$

素因数の和:466

約数の個数: 32

約数和(自身を含む): 43642368

約数和(自身を除く): 22246662

約数列:

[1, 2, 3, 6, 131, 163, 167, 262, 326, 334, 393, 489, 501, 786, 978, 1002, 21353, 21877, 27221, 42706, 43754, 54442, 64059, 65631, 81663, 128118, 131262, 163326, 3565951, 7131902, 10697853, 21395706]

約数ペア:

[(1, 21395706), (2, 10697853), (3, 7131902), (6, 3565951), (131, 163326), (163, 131262), (167, 128118), (262, 81663), (326, 65631), (334, 64059), (393, 54442), (489, 43754), (501, 42706), (786, 27221), (978, 21877), (1002, 21353)]