19829475

素因数分解:

$3^3\times 5^2\times {\mathrm{29}}^1\times {\mathrm{1013}}^1$

素因数の和:1061

約数の個数: 48

約数和(自身を含む): 37720800

約数和(自身を除く): 17891325

約数列:

[1, 3, 5, 9, 15, 25, 27, 29, 45, 75, 87, 135, 145, 225, 261, 435, 675, 725, 783, 1013, 1305, 2175, 3039, 3915, 5065, 6525, 9117, 15195, 19575, 25325, 27351, 29377, 45585, 75975, 88131, 136755, 146885, 227925, 264393, 440655, 683775, 734425, 793179, 1321965, 2203275, 3965895, 6609825, 19829475]

約数ペア:

[(1, 19829475), (3, 6609825), (5, 3965895), (9, 2203275), (15, 1321965), (25, 793179), (27, 734425), (29, 683775), (45, 440655), (75, 264393), (87, 227925), (135, 146885), (145, 136755), (225, 88131), (261, 75975), (435, 45585), (675, 29377), (725, 27351), (783, 25325), (1013, 19575), (1305, 15195), (2175, 9117), (3039, 6525), (3915, 5065)]