9781970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{5231}}^1$

素因数の和:5266

約数の個数: 32

約数和(自身を含む): 20342016

約数和(自身を除く): 10560046

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 110, 170, 187, 374, 935, 1870, 5231, 10462, 26155, 52310, 57541, 88927, 115082, 177854, 287705, 444635, 575410, 889270, 978197, 1956394, 4890985, 9781970]

約数ペア:

[(1, 9781970), (2, 4890985), (5, 1956394), (10, 978197), (11, 889270), (17, 575410), (22, 444635), (34, 287705), (55, 177854), (85, 115082), (110, 88927), (170, 57541), (187, 52310), (374, 26155), (935, 10462), (1870, 5231)]