21724090

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1\times {\mathrm{157}}^1$

素因数の和:402

約数の個数: 32

約数和(自身を含む): 40032144

約数和(自身を除く): 18308054

約数列:

[1, 2, 5, 10, 101, 137, 157, 202, 274, 314, 505, 685, 785, 1010, 1370, 1570, 13837, 15857, 21509, 27674, 31714, 43018, 69185, 79285, 107545, 138370, 158570, 215090, 2172409, 4344818, 10862045, 21724090]

約数ペア:

[(1, 21724090), (2, 10862045), (5, 4344818), (10, 2172409), (101, 215090), (137, 158570), (157, 138370), (202, 107545), (274, 79285), (314, 69185), (505, 43018), (685, 31714), (785, 27674), (1010, 21509), (1370, 15857), (1570, 13837)]