21116815908

素因数分解:

$2^2\times 3^1\times {\mathrm{131}}^1\times {\mathrm{443}}^1\times {\mathrm{30323}}^1$

素因数の和:30904

約数の個数: 48

約数和(自身を含む): 49762411776

約数和(自身を除く): 28645595868

約数列:

[1, 2, 3, 4, 6, 12, 131, 262, 393, 443, 524, 786, 886, 1329, 1572, 1772, 2658, 5316, 30323, 58033, 60646, 90969, 116066, 121292, 174099, 181938, 232132, 348198, 363876, 696396, 3972313, 7944626, 11916939, 13433089, 15889252, 23833878, 26866178, 40299267, 47667756, 53732356, 80598534, 161197068, 1759734659, 3519469318, 5279203977, 7038938636, 10558407954, 21116815908]

約数ペア:

[(1, 21116815908), (2, 10558407954), (3, 7038938636), (4, 5279203977), (6, 3519469318), (12, 1759734659), (131, 161197068), (262, 80598534), (393, 53732356), (443, 47667756), (524, 40299267), (786, 26866178), (886, 23833878), (1329, 15889252), (1572, 13433089), (1772, 11916939), (2658, 7944626), (5316, 3972313), (30323, 696396), (58033, 363876), (60646, 348198), (90969, 232132), (116066, 181938), (121292, 174099)]