19591990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{10477}}^1$

素因数の和:10512

約数の個数: 32

約数和(自身を含む): 40738464

約数和(自身を除く): 21146474

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 110, 170, 187, 374, 935, 1870, 10477, 20954, 52385, 104770, 115247, 178109, 230494, 356218, 576235, 890545, 1152470, 1781090, 1959199, 3918398, 9795995, 19591990]

約数ペア:

[(1, 19591990), (2, 9795995), (5, 3918398), (10, 1959199), (11, 1781090), (17, 1152470), (22, 890545), (34, 576235), (55, 356218), (85, 230494), (110, 178109), (170, 115247), (187, 104770), (374, 52385), (935, 20954), (1870, 10477)]