21682485

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:216

約数の個数: 80

約数和(自身を含む): 44047872

約数和(自身を除く): 22365387

約数列:

[1, 3, 5, 9, 11, 15, 27, 31, 33, 45, 55, 81, 93, 99, 135, 155, 157, 165, 279, 297, 341, 405, 465, 471, 495, 785, 837, 891, 1023, 1395, 1413, 1485, 1705, 1727, 2355, 2511, 3069, 4185, 4239, 4455, 4867, 5115, 5181, 7065, 8635, 9207, 12555, 12717, 14601, 15345, 15543, 21195, 24335, 25905, 27621, 43803, 46035, 46629, 53537, 63585, 73005, 77715, 131409, 138105, 139887, 160611, 219015, 233145, 267685, 394227, 481833, 657045, 699435, 803055, 1445499, 1971135, 2409165, 4336497, 7227495, 21682485]

約数ペア:

[(1, 21682485), (3, 7227495), (5, 4336497), (9, 2409165), (11, 1971135), (15, 1445499), (27, 803055), (31, 699435), (33, 657045), (45, 481833), (55, 394227), (81, 267685), (93, 233145), (99, 219015), (135, 160611), (155, 139887), (157, 138105), (165, 131409), (279, 77715), (297, 73005), (341, 63585), (405, 53537), (465, 46629), (471, 46035), (495, 43803), (785, 27621), (837, 25905), (891, 24335), (1023, 21195), (1395, 15543), (1413, 15345), (1485, 14601), (1705, 12717), (1727, 12555), (2355, 9207), (2511, 8635), (3069, 7065), (4185, 5181), (4239, 5115), (4455, 4867)]