18576784

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{419}}^1$

素因数の和:607

約数の個数: 40

約数和(自身を含む): 38435040

約数和(自身を除く): 19858256

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 163, 272, 326, 419, 652, 838, 1304, 1676, 2608, 2771, 3352, 5542, 6704, 7123, 11084, 14246, 22168, 28492, 44336, 56984, 68297, 113968, 136594, 273188, 546376, 1092752, 1161049, 2322098, 4644196, 9288392, 18576784]

約数ペア:

[(1, 18576784), (2, 9288392), (4, 4644196), (8, 2322098), (16, 1161049), (17, 1092752), (34, 546376), (68, 273188), (136, 136594), (163, 113968), (272, 68297), (326, 56984), (419, 44336), (652, 28492), (838, 22168), (1304, 14246), (1676, 11084), (2608, 7123), (2771, 6704), (3352, 5542)]