212819972

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{163}}^1\times {\mathrm{5351}}^1$

素因数の和:5579

約数の個数: 24

約数和(自身を含む): 380933952

約数和(自身を除く): 168113980

約数列:

[1, 2, 4, 61, 122, 163, 244, 326, 652, 5351, 9943, 10702, 19886, 21404, 39772, 326411, 652822, 872213, 1305644, 1744426, 3488852, 53204993, 106409986, 212819972]

約数ペア:

[(1, 212819972), (2, 106409986), (4, 53204993), (61, 3488852), (122, 1744426), (163, 1305644), (244, 872213), (326, 652822), (652, 326411), (5351, 39772), (9943, 21404), (10702, 19886)]