20722456

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{8963}}^1$

素因数の和:9003

約数の個数: 24

約数和(自身を含む): 41279220

約数和(自身を除く): 20556764

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 289, 578, 1156, 2312, 8963, 17926, 35852, 71704, 152371, 304742, 609484, 1218968, 2590307, 5180614, 10361228, 20722456]

約数ペア:

[(1, 20722456), (2, 10361228), (4, 5180614), (8, 2590307), (17, 1218968), (34, 609484), (68, 304742), (136, 152371), (289, 71704), (578, 35852), (1156, 17926), (2312, 8963)]