217778835

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{21767}}^1$

素因数の和:21827

約数の個数: 32

約数和(自身を含む): 376151040

約数和(自身を除く): 158372205

約数列:

[1, 3, 5, 15, 23, 29, 69, 87, 115, 145, 345, 435, 667, 2001, 3335, 10005, 21767, 65301, 108835, 326505, 500641, 631243, 1501923, 1893729, 2503205, 3156215, 7509615, 9468645, 14518589, 43555767, 72592945, 217778835]

約数ペア:

[(1, 217778835), (3, 72592945), (5, 43555767), (15, 14518589), (23, 9468645), (29, 7509615), (69, 3156215), (87, 2503205), (115, 1893729), (145, 1501923), (345, 631243), (435, 500641), (667, 326505), (2001, 108835), (3335, 65301), (10005, 21767)]