19804916

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{7043}}^1$

素因数の和:7103

約数の個数: 24

約数和(自身を含む): 37474080

約数和(自身を除く): 17669164

約数列:

[1, 2, 4, 19, 37, 38, 74, 76, 148, 703, 1406, 2812, 7043, 14086, 28172, 133817, 260591, 267634, 521182, 535268, 1042364, 4951229, 9902458, 19804916]

約数ペア:

[(1, 19804916), (2, 9902458), (4, 4951229), (19, 1042364), (37, 535268), (38, 521182), (74, 267634), (76, 260591), (148, 133817), (703, 28172), (1406, 14086), (2812, 7043)]