20213435

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^2$

素因数の和:116

約数の個数: 48

約数和(自身を含む): 30101760

約数和(自身を除く): 9888325

約数列:

[1, 5, 11, 19, 23, 29, 55, 95, 115, 145, 209, 253, 319, 437, 551, 667, 841, 1045, 1265, 1595, 2185, 2755, 3335, 4205, 4807, 6061, 7337, 9251, 12673, 15979, 19343, 24035, 30305, 36685, 46255, 63365, 79895, 96715, 139403, 175769, 212773, 367517, 697015, 878845, 1063865, 1837585, 4042687, 20213435]

約数ペア:

[(1, 20213435), (5, 4042687), (11, 1837585), (19, 1063865), (23, 878845), (29, 697015), (55, 367517), (95, 212773), (115, 175769), (145, 139403), (209, 96715), (253, 79895), (319, 63365), (437, 46255), (551, 36685), (667, 30305), (841, 24035), (1045, 19343), (1265, 15979), (1595, 12673), (2185, 9251), (2755, 7337), (3335, 6061), (4205, 4807)]