19138275

素因数分解:

$3^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{727}}^1$

素因数の和:762

約数の個数: 60

約数和(自身を含む): 38230192

約数和(自身を除く): 19091917

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 81, 117, 135, 195, 225, 325, 351, 405, 585, 675, 727, 975, 1053, 1755, 2025, 2181, 2925, 3635, 5265, 6543, 8775, 9451, 10905, 18175, 19629, 26325, 28353, 32715, 47255, 54525, 58887, 85059, 98145, 141765, 163575, 236275, 255177, 294435, 425295, 490725, 708825, 765531, 1275885, 1472175, 2126475, 3827655, 6379425, 19138275]

約数ペア:

[(1, 19138275), (3, 6379425), (5, 3827655), (9, 2126475), (13, 1472175), (15, 1275885), (25, 765531), (27, 708825), (39, 490725), (45, 425295), (65, 294435), (75, 255177), (81, 236275), (117, 163575), (135, 141765), (195, 98145), (225, 85059), (325, 58887), (351, 54525), (405, 47255), (585, 32715), (675, 28353), (727, 26325), (975, 19629), (1053, 18175), (1755, 10905), (2025, 9451), (2181, 8775), (2925, 6543), (3635, 5265)]