21031730

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{829}}^1$

素因数の和:938

約数の個数: 32

約数和(自身を含む): 39441600

約数和(自身を除く): 18409870

約数列:

[1, 2, 5, 10, 43, 59, 86, 118, 215, 295, 430, 590, 829, 1658, 2537, 4145, 5074, 8290, 12685, 25370, 35647, 48911, 71294, 97822, 178235, 244555, 356470, 489110, 2103173, 4206346, 10515865, 21031730]

約数ペア:

[(1, 21031730), (2, 10515865), (5, 4206346), (10, 2103173), (43, 489110), (59, 356470), (86, 244555), (118, 178235), (215, 97822), (295, 71294), (430, 48911), (590, 35647), (829, 25370), (1658, 12685), (2537, 8290), (4145, 5074)]