20863876

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{197}}^1$

素因数の和:324

約数の個数: 48

約数和(自身を含む): 41912640

約数和(自身を除く): 21048764

約数列:

[1, 2, 4, 11, 22, 29, 44, 58, 83, 116, 166, 197, 319, 332, 394, 638, 788, 913, 1276, 1826, 2167, 2407, 3652, 4334, 4814, 5713, 8668, 9628, 11426, 16351, 22852, 26477, 32702, 52954, 62843, 65404, 105908, 125686, 179861, 251372, 359722, 474179, 719444, 948358, 1896716, 5215969, 10431938, 20863876]

約数ペア:

[(1, 20863876), (2, 10431938), (4, 5215969), (11, 1896716), (22, 948358), (29, 719444), (44, 474179), (58, 359722), (83, 251372), (116, 179861), (166, 125686), (197, 105908), (319, 65404), (332, 62843), (394, 52954), (638, 32702), (788, 26477), (913, 22852), (1276, 16351), (1826, 11426), (2167, 9628), (2407, 8668), (3652, 5713), (4334, 4814)]