18907472

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{191}}^1\times {\mathrm{269}}^1$

素因数の和:491

約数の個数: 40

約数和(自身を含む): 38568960

約数和(自身を除く): 19661488

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 191, 269, 368, 382, 538, 764, 1076, 1528, 2152, 3056, 4304, 4393, 6187, 8786, 12374, 17572, 24748, 35144, 49496, 51379, 70288, 98992, 102758, 205516, 411032, 822064, 1181717, 2363434, 4726868, 9453736, 18907472]

約数ペア:

[(1, 18907472), (2, 9453736), (4, 4726868), (8, 2363434), (16, 1181717), (23, 822064), (46, 411032), (92, 205516), (184, 102758), (191, 98992), (269, 70288), (368, 51379), (382, 49496), (538, 35144), (764, 24748), (1076, 17572), (1528, 12374), (2152, 8786), (3056, 6187), (4304, 4393)]