19645648

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{111623}}^1$

素因数の和:111642

約数の個数: 20

約数和(自身を含む): 41524128

約数和(自身を除く): 21878480

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 111623, 223246, 446492, 892984, 1227853, 1785968, 2455706, 4911412, 9822824, 19645648]

約数ペア:

[(1, 19645648), (2, 9822824), (4, 4911412), (8, 2455706), (11, 1785968), (16, 1227853), (22, 892984), (44, 446492), (88, 223246), (176, 111623)]