19025289

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:190

約数の個数: 48

約数和(自身を含む): 30983680

約数和(自身を除く): 11958391

約数列:

[1, 3, 9, 19, 31, 37, 57, 93, 97, 111, 171, 279, 291, 333, 589, 703, 873, 1147, 1767, 1843, 2109, 3007, 3441, 3589, 5301, 5529, 6327, 9021, 10323, 10767, 16587, 21793, 27063, 32301, 57133, 65379, 68191, 111259, 171399, 196137, 204573, 333777, 514197, 613719, 1001331, 2113921, 6341763, 19025289]

約数ペア:

[(1, 19025289), (3, 6341763), (9, 2113921), (19, 1001331), (31, 613719), (37, 514197), (57, 333777), (93, 204573), (97, 196137), (111, 171399), (171, 111259), (279, 68191), (291, 65379), (333, 57133), (589, 32301), (703, 27063), (873, 21793), (1147, 16587), (1767, 10767), (1843, 10323), (2109, 9021), (3007, 6327), (3441, 5529), (3589, 5301)]