21803669209

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{707429}}^1$

素因数の和:707497

約数の個数: 24

約数和(自身を含む): 27581280840

約数和(自身を除く): 5777611631

約数列:

[1, 7, 17, 37, 49, 119, 259, 629, 833, 1813, 4403, 30821, 707429, 4952003, 12026293, 26174873, 34664021, 84184051, 183224111, 444972841, 589288357, 1282568777, 3114809887, 21803669209]

約数ペア:

[(1, 21803669209), (7, 3114809887), (17, 1282568777), (37, 589288357), (49, 444972841), (119, 183224111), (259, 84184051), (629, 34664021), (833, 26174873), (1813, 12026293), (4403, 4952003), (30821, 707429)]