20244519

素因数分解:

$3^3\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:145

約数の個数: 48

約数和(自身を含む): 33162240

約数和(自身を除く): 12917721

約数列:

[1, 3, 9, 19, 27, 31, 57, 67, 93, 171, 201, 279, 361, 513, 589, 603, 837, 1083, 1273, 1767, 1809, 2077, 3249, 3819, 5301, 6231, 9747, 11191, 11457, 15903, 18693, 24187, 33573, 34371, 39463, 56079, 72561, 100719, 118389, 217683, 302157, 355167, 653049, 749797, 1065501, 2249391, 6748173, 20244519]

約数ペア:

[(1, 20244519), (3, 6748173), (9, 2249391), (19, 1065501), (27, 749797), (31, 653049), (57, 355167), (67, 302157), (93, 217683), (171, 118389), (201, 100719), (279, 72561), (361, 56079), (513, 39463), (589, 34371), (603, 33573), (837, 24187), (1083, 18693), (1273, 15903), (1767, 11457), (1809, 11191), (2077, 9747), (3249, 6231), (3819, 5301)]