21715320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{16451}}^1$

素因数の和:16476

約数の個数: 64

約数和(自身を含む): 71072640

約数和(自身を除く): 49357320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 16451, 32902, 49353, 65804, 82255, 98706, 131608, 164510, 180961, 197412, 246765, 329020, 361922, 394824, 493530, 542883, 658040, 723844, 904805, 987060, 1085766, 1447688, 1809610, 1974120, 2171532, 2714415, 3619220, 4343064, 5428830, 7238440, 10857660, 21715320]

約数ペア:

[(1, 21715320), (2, 10857660), (3, 7238440), (4, 5428830), (5, 4343064), (6, 3619220), (8, 2714415), (10, 2171532), (11, 1974120), (12, 1809610), (15, 1447688), (20, 1085766), (22, 987060), (24, 904805), (30, 723844), (33, 658040), (40, 542883), (44, 493530), (55, 394824), (60, 361922), (66, 329020), (88, 246765), (110, 197412), (120, 180961), (132, 164510), (165, 131608), (220, 98706), (264, 82255), (330, 65804), (440, 49353), (660, 32902), (1320, 16451)]