19204965

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{353}}^1$

素因数の和:411

約数の個数: 64

約数和(自身を含む): 38062080

約数和(自身を除く): 18857115

約数列:

[1, 3, 5, 9, 13, 15, 27, 31, 39, 45, 65, 93, 117, 135, 155, 195, 279, 351, 353, 403, 465, 585, 837, 1059, 1209, 1395, 1755, 1765, 2015, 3177, 3627, 4185, 4589, 5295, 6045, 9531, 10881, 10943, 13767, 15885, 18135, 22945, 32829, 41301, 47655, 54405, 54715, 68835, 98487, 123903, 142259, 164145, 206505, 295461, 426777, 492435, 619515, 711295, 1280331, 1477305, 2133885, 3840993, 6401655, 19204965]

約数ペア:

[(1, 19204965), (3, 6401655), (5, 3840993), (9, 2133885), (13, 1477305), (15, 1280331), (27, 711295), (31, 619515), (39, 492435), (45, 426777), (65, 295461), (93, 206505), (117, 164145), (135, 142259), (155, 123903), (195, 98487), (279, 68835), (351, 54715), (353, 54405), (403, 47655), (465, 41301), (585, 32829), (837, 22945), (1059, 18135), (1209, 15885), (1395, 13767), (1755, 10943), (1765, 10881), (2015, 9531), (3177, 6045), (3627, 5295), (4185, 4589)]