19994100

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{9521}}^1$

素因数の和:9545

約数の個数: 72

約数和(自身を含む): 66120768

約数和(自身を除く): 46126668

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 100, 105, 140, 150, 175, 210, 300, 350, 420, 525, 700, 1050, 2100, 9521, 19042, 28563, 38084, 47605, 57126, 66647, 95210, 114252, 133294, 142815, 190420, 199941, 238025, 266588, 285630, 333235, 399882, 476050, 571260, 666470, 714075, 799764, 952100, 999705, 1332940, 1428150, 1666175, 1999410, 2856300, 3332350, 3998820, 4998525, 6664700, 9997050, 19994100]

約数ペア:

[(1, 19994100), (2, 9997050), (3, 6664700), (4, 4998525), (5, 3998820), (6, 3332350), (7, 2856300), (10, 1999410), (12, 1666175), (14, 1428150), (15, 1332940), (20, 999705), (21, 952100), (25, 799764), (28, 714075), (30, 666470), (35, 571260), (42, 476050), (50, 399882), (60, 333235), (70, 285630), (75, 266588), (84, 238025), (100, 199941), (105, 190420), (140, 142815), (150, 133294), (175, 114252), (210, 95210), (300, 66647), (350, 57126), (420, 47605), (525, 38084), (700, 28563), (1050, 19042), (2100, 9521)]