19882135

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1181}}^1$

素因数の和:1243

約数の個数: 32

約数和(自身を含む): 30183552

約数和(自身を除く): 10301417

約数列:

[1, 5, 7, 13, 35, 37, 65, 91, 185, 259, 455, 481, 1181, 1295, 2405, 3367, 5905, 8267, 15353, 16835, 41335, 43697, 76765, 107471, 218485, 305879, 537355, 568061, 1529395, 2840305, 3976427, 19882135]

約数ペア:

[(1, 19882135), (5, 3976427), (7, 2840305), (13, 1529395), (35, 568061), (37, 537355), (65, 305879), (91, 218485), (185, 107471), (259, 76765), (455, 43697), (481, 41335), (1181, 16835), (1295, 15353), (2405, 8267), (3367, 5905)]