18727359

素因数分解:

$3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{191}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 31518720

約数和(自身を除く): 12791361

約数列:

[1, 3, 7, 21, 23, 29, 49, 69, 87, 147, 161, 191, 203, 483, 573, 609, 667, 1127, 1337, 1421, 2001, 3381, 4011, 4263, 4393, 4669, 5539, 9359, 13179, 14007, 16617, 28077, 30751, 32683, 38773, 92253, 98049, 116319, 127397, 215257, 271411, 382191, 645771, 814233, 891779, 2675337, 6242453, 18727359]

約数ペア:

[(1, 18727359), (3, 6242453), (7, 2675337), (21, 891779), (23, 814233), (29, 645771), (49, 382191), (69, 271411), (87, 215257), (147, 127397), (161, 116319), (191, 98049), (203, 92253), (483, 38773), (573, 32683), (609, 30751), (667, 28077), (1127, 16617), (1337, 14007), (1421, 13179), (2001, 9359), (3381, 5539), (4011, 4669), (4263, 4393)]