21336658

素因数分解:

$2^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{1637}}^1$

素因数の和:1679

約数の個数: 32

約数和(自身を含む): 39312000

約数和(自身を除く): 17975342

約数列:

[1, 2, 7, 14, 19, 38, 49, 98, 133, 266, 343, 686, 931, 1637, 1862, 3274, 6517, 11459, 13034, 22918, 31103, 62206, 80213, 160426, 217721, 435442, 561491, 1122982, 1524047, 3048094, 10668329, 21336658]

約数ペア:

[(1, 21336658), (2, 10668329), (7, 3048094), (14, 1524047), (19, 1122982), (38, 561491), (49, 435442), (98, 217721), (133, 160426), (266, 80213), (343, 62206), (686, 31103), (931, 22918), (1637, 13034), (1862, 11459), (3274, 6517)]