221558728

素因数分解:

$2^3\times {\mathrm{131}}^1\times {\mathrm{163}}^1\times {\mathrm{1297}}^1$

素因数の和:1597

約数の個数: 32

約数和(自身を含む): 421486560

約数和(自身を除く): 199927832

約数列:

[1, 2, 4, 8, 131, 163, 262, 326, 524, 652, 1048, 1297, 1304, 2594, 5188, 10376, 21353, 42706, 85412, 169907, 170824, 211411, 339814, 422822, 679628, 845644, 1359256, 1691288, 27694841, 55389682, 110779364, 221558728]

約数ペア:

[(1, 221558728), (2, 110779364), (4, 55389682), (8, 27694841), (131, 1691288), (163, 1359256), (262, 845644), (326, 679628), (524, 422822), (652, 339814), (1048, 211411), (1297, 170824), (1304, 169907), (2594, 85412), (5188, 42706), (10376, 21353)]