19432881

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^2$

素因数の和:190

約数の個数: 36

約数和(自身を含む): 31516212

約数和(自身を除く): 12083331

約数列:

[1, 3, 9, 13, 37, 39, 67, 111, 117, 201, 333, 481, 603, 871, 1443, 2479, 2613, 4329, 4489, 7437, 7839, 13467, 22311, 32227, 40401, 58357, 96681, 166093, 175071, 290043, 498279, 525213, 1494837, 2159209, 6477627, 19432881]

約数ペア:

[(1, 19432881), (3, 6477627), (9, 2159209), (13, 1494837), (37, 525213), (39, 498279), (67, 290043), (111, 175071), (117, 166093), (201, 96681), (333, 58357), (481, 40401), (603, 32227), (871, 22311), (1443, 13467), (2479, 7839), (2613, 7437), (4329, 4489)]