19413585

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1$

素因数の和:262

約数の個数: 48

約数和(自身を含む): 35133696

約数和(自身を除く): 15720111

約数列:

[1, 3, 5, 9, 15, 45, 47, 67, 137, 141, 201, 235, 335, 411, 423, 603, 685, 705, 1005, 1233, 2055, 2115, 3015, 3149, 6165, 6439, 9179, 9447, 15745, 19317, 27537, 28341, 32195, 45895, 47235, 57951, 82611, 96585, 137685, 141705, 289755, 413055, 431413, 1294239, 2157065, 3882717, 6471195, 19413585]

約数ペア:

[(1, 19413585), (3, 6471195), (5, 3882717), (9, 2157065), (15, 1294239), (45, 431413), (47, 413055), (67, 289755), (137, 141705), (141, 137685), (201, 96585), (235, 82611), (335, 57951), (411, 47235), (423, 45895), (603, 32195), (685, 28341), (705, 27537), (1005, 19317), (1233, 15745), (2055, 9447), (2115, 9179), (3015, 6439), (3149, 6165)]