19796445

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{617}}^1$

素因数の和:682

約数の個数: 48

約数和(自身を含む): 37020672

約数和(自身を除く): 17224227

約数列:

[1, 3, 5, 9, 15, 23, 31, 45, 69, 93, 115, 155, 207, 279, 345, 465, 617, 713, 1035, 1395, 1851, 2139, 3085, 3565, 5553, 6417, 9255, 10695, 14191, 19127, 27765, 32085, 42573, 57381, 70955, 95635, 127719, 172143, 212865, 286905, 439921, 638595, 860715, 1319763, 2199605, 3959289, 6598815, 19796445]

約数ペア:

[(1, 19796445), (3, 6598815), (5, 3959289), (9, 2199605), (15, 1319763), (23, 860715), (31, 638595), (45, 439921), (69, 286905), (93, 212865), (115, 172143), (155, 127719), (207, 95635), (279, 70955), (345, 57381), (465, 42573), (617, 32085), (713, 27765), (1035, 19127), (1395, 14191), (1851, 10695), (2139, 9255), (3085, 6417), (3565, 5553)]