18736545

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{241}}^1$

素因数の和:393

約数の個数: 32

約数和(自身を含む): 30945024

約数和(自身を除く): 12208479

約数列:

[1, 3, 5, 15, 71, 73, 213, 219, 241, 355, 365, 723, 1065, 1095, 1205, 3615, 5183, 15549, 17111, 17593, 25915, 51333, 52779, 77745, 85555, 87965, 256665, 263895, 1249103, 3747309, 6245515, 18736545]

約数ペア:

[(1, 18736545), (3, 6245515), (5, 3747309), (15, 1249103), (71, 263895), (73, 256665), (213, 87965), (219, 85555), (241, 77745), (355, 52779), (365, 51333), (723, 25915), (1065, 17593), (1095, 17111), (1205, 15549), (3615, 5183)]