21110375

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1181}}^1$

素因数の和:1220

約数の個数: 32

約数和(自身を含む): 30977856

約数和(自身を除く): 9867481

約数列:

[1, 5, 11, 13, 25, 55, 65, 125, 143, 275, 325, 715, 1181, 1375, 1625, 3575, 5905, 12991, 15353, 17875, 29525, 64955, 76765, 147625, 168883, 324775, 383825, 844415, 1623875, 1919125, 4222075, 21110375]

約数ペア:

[(1, 21110375), (5, 4222075), (11, 1919125), (13, 1623875), (25, 844415), (55, 383825), (65, 324775), (125, 168883), (143, 147625), (275, 76765), (325, 64955), (715, 29525), (1181, 17875), (1375, 15353), (1625, 12991), (3575, 5905)]