21993310

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1\times {\mathrm{419}}^1$

素因数の和:636

約数の個数: 32

約数和(自身を含む): 41277600

約数和(自身を除く): 19284290

約数列:

[1, 2, 5, 10, 29, 58, 145, 181, 290, 362, 419, 838, 905, 1810, 2095, 4190, 5249, 10498, 12151, 24302, 26245, 52490, 60755, 75839, 121510, 151678, 379195, 758390, 2199331, 4398662, 10996655, 21993310]

約数ペア:

[(1, 21993310), (2, 10996655), (5, 4398662), (10, 2199331), (29, 758390), (58, 379195), (145, 151678), (181, 121510), (290, 75839), (362, 60755), (419, 52490), (838, 26245), (905, 24302), (1810, 12151), (2095, 10498), (4190, 5249)]