19891728

素因数分解:

$2^4\times 3^2\times {\mathrm{107}}^1\times {\mathrm{1291}}^1$

素因数の和:1412

約数の個数: 60

約数和(自身を含む): 56233008

約数和(自身を除く): 36341280

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 107, 144, 214, 321, 428, 642, 856, 963, 1284, 1291, 1712, 1926, 2568, 2582, 3852, 3873, 5136, 5164, 7704, 7746, 10328, 11619, 15408, 15492, 20656, 23238, 30984, 46476, 61968, 92952, 138137, 185904, 276274, 414411, 552548, 828822, 1105096, 1243233, 1657644, 2210192, 2486466, 3315288, 4972932, 6630576, 9945864, 19891728]

約数ペア:

[(1, 19891728), (2, 9945864), (3, 6630576), (4, 4972932), (6, 3315288), (8, 2486466), (9, 2210192), (12, 1657644), (16, 1243233), (18, 1105096), (24, 828822), (36, 552548), (48, 414411), (72, 276274), (107, 185904), (144, 138137), (214, 92952), (321, 61968), (428, 46476), (642, 30984), (856, 23238), (963, 20656), (1284, 15492), (1291, 15408), (1712, 11619), (1926, 10328), (2568, 7746), (2582, 7704), (3852, 5164), (3873, 5136)]