161221204

素因数分解:

$2^2\times {\mathrm{31}}^2\times {\mathrm{41941}}^1$

素因数の和:42007

約数の個数: 18

約数和(自身を含む): 291538842

約数和(自身を除く): 130317638

約数列:

[1, 2, 4, 31, 62, 124, 961, 1922, 3844, 41941, 83882, 167764, 1300171, 2600342, 5200684, 40305301, 80610602, 161221204]

約数ペア:

[(1, 161221204), (2, 80610602), (4, 40305301), (31, 5200684), (62, 2600342), (124, 1300171), (961, 167764), (1922, 83882), (3844, 41941)]