18942147

素因数分解:

$3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:161

約数の個数: 64

約数和(自身を含む): 34283520

約数和(自身を除く): 15341373

約数列:

[1, 3, 7, 9, 21, 27, 31, 53, 61, 63, 93, 159, 183, 189, 217, 279, 371, 427, 477, 549, 651, 837, 1113, 1281, 1431, 1643, 1647, 1891, 1953, 3233, 3339, 3843, 4929, 5673, 5859, 9699, 10017, 11501, 11529, 13237, 14787, 17019, 22631, 29097, 34503, 39711, 44361, 51057, 67893, 87291, 100223, 103509, 119133, 203679, 300669, 310527, 357399, 611037, 701561, 902007, 2104683, 2706021, 6314049, 18942147]

約数ペア:

[(1, 18942147), (3, 6314049), (7, 2706021), (9, 2104683), (21, 902007), (27, 701561), (31, 611037), (53, 357399), (61, 310527), (63, 300669), (93, 203679), (159, 119133), (183, 103509), (189, 100223), (217, 87291), (279, 67893), (371, 51057), (427, 44361), (477, 39711), (549, 34503), (651, 29097), (837, 22631), (1113, 17019), (1281, 14787), (1431, 13237), (1643, 11529), (1647, 11501), (1891, 10017), (1953, 9699), (3233, 5859), (3339, 5673), (3843, 4929)]