17979455

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{307}}^1$

素因数の和:395

約数の個数: 32

約数和(自身を含む): 25147584

約数和(自身を除く): 7168129

約数列:

[1, 5, 13, 17, 53, 65, 85, 221, 265, 307, 689, 901, 1105, 1535, 3445, 3991, 4505, 5219, 11713, 16271, 19955, 26095, 58565, 67847, 81355, 211523, 276607, 339235, 1057615, 1383035, 3595891, 17979455]

約数ペア:

[(1, 17979455), (5, 3595891), (13, 1383035), (17, 1057615), (53, 339235), (65, 276607), (85, 211523), (221, 81355), (265, 67847), (307, 58565), (689, 26095), (901, 19955), (1105, 16271), (1535, 11713), (3445, 5219), (3991, 4505)]