19639185

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{313}}^1$

素因数の和:457

約数の個数: 32

約数和(自身を含む): 32555520

約数和(自身を除く): 12916335

約数列:

[1, 3, 5, 15, 47, 89, 141, 235, 267, 313, 445, 705, 939, 1335, 1565, 4183, 4695, 12549, 14711, 20915, 27857, 44133, 62745, 73555, 83571, 139285, 220665, 417855, 1309279, 3927837, 6546395, 19639185]

約数ペア:

[(1, 19639185), (3, 6546395), (5, 3927837), (15, 1309279), (47, 417855), (89, 220665), (141, 139285), (235, 83571), (267, 73555), (313, 62745), (445, 44133), (705, 27857), (939, 20915), (1335, 14711), (1565, 12549), (4183, 4695)]