21831056

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{1019}}^1$

素因数の和:1143

約数の個数: 40

約数和(自身を含む): 46038720

約数和(自身を除く): 24207664

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 103, 104, 206, 208, 412, 824, 1019, 1339, 1648, 2038, 2678, 4076, 5356, 8152, 10712, 13247, 16304, 21424, 26494, 52988, 104957, 105976, 209914, 211952, 419828, 839656, 1364441, 1679312, 2728882, 5457764, 10915528, 21831056]

約数ペア:

[(1, 21831056), (2, 10915528), (4, 5457764), (8, 2728882), (13, 1679312), (16, 1364441), (26, 839656), (52, 419828), (103, 211952), (104, 209914), (206, 105976), (208, 104957), (412, 52988), (824, 26494), (1019, 21424), (1339, 16304), (1648, 13247), (2038, 10712), (2678, 8152), (4076, 5356)]