20393505

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{443}}^1$

素因数の和:499

約数の個数: 64

約数和(自身を含む): 40919040

約数和(自身を除く): 20525535

約数列:

[1, 3, 5, 9, 11, 15, 27, 31, 33, 45, 55, 93, 99, 135, 155, 165, 279, 297, 341, 443, 465, 495, 837, 1023, 1329, 1395, 1485, 1705, 2215, 3069, 3987, 4185, 4873, 5115, 6645, 9207, 11961, 13733, 14619, 15345, 19935, 24365, 41199, 43857, 46035, 59805, 68665, 73095, 123597, 131571, 151063, 205995, 219285, 370791, 453189, 617985, 657855, 755315, 1359567, 1853955, 2265945, 4078701, 6797835, 20393505]

約数ペア:

[(1, 20393505), (3, 6797835), (5, 4078701), (9, 2265945), (11, 1853955), (15, 1359567), (27, 755315), (31, 657855), (33, 617985), (45, 453189), (55, 370791), (93, 219285), (99, 205995), (135, 151063), (155, 131571), (165, 123597), (279, 73095), (297, 68665), (341, 59805), (443, 46035), (465, 43857), (495, 41199), (837, 24365), (1023, 19935), (1329, 15345), (1395, 14619), (1485, 13733), (1705, 11961), (2215, 9207), (3069, 6645), (3987, 5115), (4185, 4873)]