21870728

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{1583}}^1$

素因数の和:1757

約数の個数: 32

約数和(自身を含む): 45048960

約数和(自身を除く): 23178232

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 157, 314, 628, 1256, 1583, 1727, 3166, 3454, 6332, 6908, 12664, 13816, 17413, 34826, 69652, 139304, 248531, 497062, 994124, 1988248, 2733841, 5467682, 10935364, 21870728]

約数ペア:

[(1, 21870728), (2, 10935364), (4, 5467682), (8, 2733841), (11, 1988248), (22, 994124), (44, 497062), (88, 248531), (157, 139304), (314, 69652), (628, 34826), (1256, 17413), (1583, 13816), (1727, 12664), (3166, 6908), (3454, 6332)]