213401375

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{155201}}^1$

素因数の和:155227

約数の個数: 16

約数和(自身を含む): 290538144

約数和(自身を除く): 77136769

約数列:

[1, 5, 11, 25, 55, 125, 275, 1375, 155201, 776005, 1707211, 3880025, 8536055, 19400125, 42680275, 213401375]

約数ペア:

[(1, 213401375), (5, 42680275), (11, 19400125), (25, 8536055), (55, 3880025), (125, 1707211), (275, 776005), (1375, 155201)]