18927735

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{661}}^1$

素因数の和:775

約数の個数: 32

約数和(自身を含む): 32030208

約数和(自身を除く): 13102473

約数列:

[1, 3, 5, 15, 23, 69, 83, 115, 249, 345, 415, 661, 1245, 1909, 1983, 3305, 5727, 9545, 9915, 15203, 28635, 45609, 54863, 76015, 164589, 228045, 274315, 822945, 1261849, 3785547, 6309245, 18927735]

約数ペア:

[(1, 18927735), (3, 6309245), (5, 3785547), (15, 1261849), (23, 822945), (69, 274315), (83, 228045), (115, 164589), (249, 76015), (345, 54863), (415, 45609), (661, 28635), (1245, 15203), (1909, 9915), (1983, 9545), (3305, 5727)]