18697432

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1$

素因数の和:212

約数の個数: 64

約数和(自身を含む): 40027680

約数和(自身を除く): 21330248

約数列:

[1, 2, 4, 8, 13, 26, 37, 43, 52, 74, 86, 104, 113, 148, 172, 226, 296, 344, 452, 481, 559, 904, 962, 1118, 1469, 1591, 1924, 2236, 2938, 3182, 3848, 4181, 4472, 4859, 5876, 6364, 8362, 9718, 11752, 12728, 16724, 19436, 20683, 33448, 38872, 41366, 54353, 63167, 82732, 108706, 126334, 165464, 179783, 217412, 252668, 359566, 434824, 505336, 719132, 1438264, 2337179, 4674358, 9348716, 18697432]

約数ペア:

[(1, 18697432), (2, 9348716), (4, 4674358), (8, 2337179), (13, 1438264), (26, 719132), (37, 505336), (43, 434824), (52, 359566), (74, 252668), (86, 217412), (104, 179783), (113, 165464), (148, 126334), (172, 108706), (226, 82732), (296, 63167), (344, 54353), (452, 41366), (481, 38872), (559, 33448), (904, 20683), (962, 19436), (1118, 16724), (1469, 12728), (1591, 11752), (1924, 9718), (2236, 8362), (2938, 6364), (3182, 5876), (3848, 4859), (4181, 4472)]