21780466096

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{80075243}}^1$

素因数の和:80075268

約数の個数: 20

約数和(自身を含む): 44681986152

約数和(自身を除く): 22901520056

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 80075243, 160150486, 320300972, 640601944, 1281203888, 1361279131, 2722558262, 5445116524, 10890233048, 21780466096]

約数ペア:

[(1, 21780466096), (2, 10890233048), (4, 5445116524), (8, 2722558262), (16, 1361279131), (17, 1281203888), (34, 640601944), (68, 320300972), (136, 160150486), (272, 80075243)]