220227553

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{2447}}^1$

素因数の和:2533

約数の個数: 32

約数和(自身を含む): 289529856

約数和(自身を除く): 69302303

約数列:

[1, 7, 13, 23, 43, 91, 161, 299, 301, 559, 989, 2093, 2447, 3913, 6923, 12857, 17129, 31811, 56281, 89999, 105221, 222677, 393967, 731653, 736547, 1367873, 2420083, 5121571, 9575111, 16940581, 31461079, 220227553]

約数ペア:

[(1, 220227553), (7, 31461079), (13, 16940581), (23, 9575111), (43, 5121571), (91, 2420083), (161, 1367873), (299, 736547), (301, 731653), (559, 393967), (989, 222677), (2093, 105221), (2447, 89999), (3913, 56281), (6923, 31811), (12857, 17129)]