21551117913

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1021}}^1\times {\mathrm{6221}}^1$

素因数の和:7290

約数の個数: 48

約数和(自身を含む): 34719506640

約数和(自身を除く): 13168388727

約数列:

[1, 3, 9, 13, 29, 39, 87, 117, 261, 377, 1021, 1131, 3063, 3393, 6221, 9189, 13273, 18663, 29609, 39819, 55989, 80873, 88827, 119457, 180409, 242619, 266481, 384917, 541227, 727857, 1154751, 1623681, 2345317, 3464253, 6351641, 7035951, 19054923, 21107853, 57164769, 82571333, 184197589, 247713999, 552592767, 743141997, 1657778301, 2394568657, 7183705971, 21551117913]

約数ペア:

[(1, 21551117913), (3, 7183705971), (9, 2394568657), (13, 1657778301), (29, 743141997), (39, 552592767), (87, 247713999), (117, 184197589), (261, 82571333), (377, 57164769), (1021, 21107853), (1131, 19054923), (3063, 7035951), (3393, 6351641), (6221, 3464253), (9189, 2345317), (13273, 1623681), (18663, 1154751), (29609, 727857), (39819, 541227), (55989, 384917), (80873, 266481), (88827, 242619), (119457, 180409)]