21384935

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{2719}}^1$

素因数の和:2759

約数の個数: 24

約数和(自身を含む): 30387840

約数和(自身を除く): 9002905

約数列:

[1, 5, 11, 13, 55, 65, 121, 143, 605, 715, 1573, 2719, 7865, 13595, 29909, 35347, 149545, 176735, 328999, 388817, 1644995, 1944085, 4276987, 21384935]

約数ペア:

[(1, 21384935), (5, 4276987), (11, 1944085), (13, 1644995), (55, 388817), (65, 328999), (121, 176735), (143, 149545), (605, 35347), (715, 29909), (1573, 13595), (2719, 7865)]