20927459

素因数分解:

$7^3\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:172

約数の個数: 32

約数和(自身を含む): 26812800

約数和(自身を除く): 5885341

約数列:

[1, 7, 17, 37, 49, 97, 119, 259, 343, 629, 679, 833, 1649, 1813, 3589, 4403, 4753, 5831, 11543, 12691, 25123, 30821, 33271, 61013, 80801, 175861, 215747, 427091, 565607, 1231027, 2989637, 20927459]

約数ペア:

[(1, 20927459), (7, 2989637), (17, 1231027), (37, 565607), (49, 427091), (97, 215747), (119, 175861), (259, 80801), (343, 61013), (629, 33271), (679, 30821), (833, 25123), (1649, 12691), (1813, 11543), (3589, 5831), (4403, 4753)]