21007378

素因数分解:

$2^1\times 7^3\times {\mathrm{113}}^1\times {\mathrm{271}}^1$

素因数の和:407

約数の個数: 32

約数和(自身を含む): 37209600

約数和(自身を除く): 16202222

約数列:

[1, 2, 7, 14, 49, 98, 113, 226, 271, 343, 542, 686, 791, 1582, 1897, 3794, 5537, 11074, 13279, 26558, 30623, 38759, 61246, 77518, 92953, 185906, 214361, 428722, 1500527, 3001054, 10503689, 21007378]

約数ペア:

[(1, 21007378), (2, 10503689), (7, 3001054), (14, 1500527), (49, 428722), (98, 214361), (113, 185906), (226, 92953), (271, 77518), (343, 61246), (542, 38759), (686, 30623), (791, 26558), (1582, 13279), (1897, 11074), (3794, 5537)]