21709646

素因数分解:

$2^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:273

約数の個数: 48

約数和(自身を含む): 40851216

約数和(自身を除く): 19141570

約数列:

[1, 2, 7, 14, 17, 34, 49, 83, 98, 119, 157, 166, 238, 314, 581, 833, 1099, 1162, 1411, 1666, 2198, 2669, 2822, 4067, 5338, 7693, 8134, 9877, 13031, 15386, 18683, 19754, 26062, 37366, 69139, 91217, 130781, 138278, 182434, 221527, 261562, 443054, 638519, 1277038, 1550689, 3101378, 10854823, 21709646]

約数ペア:

[(1, 21709646), (2, 10854823), (7, 3101378), (14, 1550689), (17, 1277038), (34, 638519), (49, 443054), (83, 261562), (98, 221527), (119, 182434), (157, 138278), (166, 130781), (238, 91217), (314, 69139), (581, 37366), (833, 26062), (1099, 19754), (1162, 18683), (1411, 15386), (1666, 13031), (2198, 9877), (2669, 8134), (2822, 7693), (4067, 5338)]