19267664

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5449}}^1$

素因数の和:5487

約数の個数: 40

約数和(自身を含む): 42575400

約数和(自身を除く): 23307736

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 208, 221, 272, 442, 884, 1768, 3536, 5449, 10898, 21796, 43592, 70837, 87184, 92633, 141674, 185266, 283348, 370532, 566696, 741064, 1133392, 1204229, 1482128, 2408458, 4816916, 9633832, 19267664]

約数ペア:

[(1, 19267664), (2, 9633832), (4, 4816916), (8, 2408458), (13, 1482128), (16, 1204229), (17, 1133392), (26, 741064), (34, 566696), (52, 370532), (68, 283348), (104, 185266), (136, 141674), (208, 92633), (221, 87184), (272, 70837), (442, 43592), (884, 21796), (1768, 10898), (3536, 5449)]