21525764

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{4019}}^1$

素因数の和:4139

約数の個数: 24

約数和(自身を含む): 40971840

約数和(自身を除く): 19446076

約数列:

[1, 2, 4, 13, 26, 52, 103, 206, 412, 1339, 2678, 4019, 5356, 8038, 16076, 52247, 104494, 208988, 413957, 827914, 1655828, 5381441, 10762882, 21525764]

約数ペア:

[(1, 21525764), (2, 10762882), (4, 5381441), (13, 1655828), (26, 827914), (52, 413957), (103, 208988), (206, 104494), (412, 52247), (1339, 16076), (2678, 8038), (4019, 5356)]