18685368

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19963}}^1$

素因数の和:19988

約数の個数: 48

約数和(自身を含む): 54501720

約数和(自身を除く): 35816352

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 24, 26, 36, 39, 52, 72, 78, 104, 117, 156, 234, 312, 468, 936, 19963, 39926, 59889, 79852, 119778, 159704, 179667, 239556, 259519, 359334, 479112, 519038, 718668, 778557, 1038076, 1437336, 1557114, 2076152, 2335671, 3114228, 4671342, 6228456, 9342684, 18685368]

約数ペア:

[(1, 18685368), (2, 9342684), (3, 6228456), (4, 4671342), (6, 3114228), (8, 2335671), (9, 2076152), (12, 1557114), (13, 1437336), (18, 1038076), (24, 778557), (26, 718668), (36, 519038), (39, 479112), (52, 359334), (72, 259519), (78, 239556), (104, 179667), (117, 159704), (156, 119778), (234, 79852), (312, 59889), (468, 39926), (936, 19963)]