19510578

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^2\times {\mathrm{683}}^1$

素因数の和:740

約数の個数: 48

約数和(自身を含む): 45390240

約数和(自身を除く): 25879662

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 69, 138, 207, 414, 529, 621, 683, 1058, 1242, 1366, 1587, 2049, 3174, 4098, 4761, 6147, 9522, 12294, 14283, 15709, 18441, 28566, 31418, 36882, 47127, 94254, 141381, 282762, 361307, 424143, 722614, 848286, 1083921, 2167842, 3251763, 6503526, 9755289, 19510578]

約数ペア:

[(1, 19510578), (2, 9755289), (3, 6503526), (6, 3251763), (9, 2167842), (18, 1083921), (23, 848286), (27, 722614), (46, 424143), (54, 361307), (69, 282762), (138, 141381), (207, 94254), (414, 47127), (529, 36882), (621, 31418), (683, 28566), (1058, 18441), (1242, 15709), (1366, 14283), (1587, 12294), (2049, 9522), (3174, 6147), (4098, 4761)]