21050312195

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{797}}^1\times {\mathrm{20879}}^1$

素因数の和:21715

約数の個数: 32

約数和(自身を含む): 28792350720

約数和(自身を除く): 7742038525

約数列:

[1, 5, 11, 23, 55, 115, 253, 797, 1265, 3985, 8767, 18331, 20879, 43835, 91655, 104395, 201641, 229669, 480217, 1008205, 1148345, 2401085, 5282387, 16640563, 26411935, 83202815, 183046193, 382732949, 915230965, 1913664745, 4210062439, 21050312195]

約数ペア:

[(1, 21050312195), (5, 4210062439), (11, 1913664745), (23, 915230965), (55, 382732949), (115, 183046193), (253, 83202815), (797, 26411935), (1265, 16640563), (3985, 5282387), (8767, 2401085), (18331, 1148345), (20879, 1008205), (43835, 480217), (91655, 229669), (104395, 201641)]