21000401282

素因数分解:

$2^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{11278411}}^1$

素因数の和:11278446

約数の個数: 24

約数和(自身を含む): 38572169040

約数和(自身を除く): 17571767758

約数列:

[1, 2, 7, 14, 19, 38, 49, 98, 133, 266, 931, 1862, 11278411, 22556822, 78948877, 157897754, 214289809, 428579618, 552642139, 1105284278, 1500028663, 3000057326, 10500200641, 21000401282]

約数ペア:

[(1, 21000401282), (2, 10500200641), (7, 3000057326), (14, 1500028663), (19, 1105284278), (38, 552642139), (49, 428579618), (98, 214289809), (133, 157897754), (266, 78948877), (931, 22556822), (1862, 11278411)]