19218888

素因数分解:

$2^3\times 3^2\times {\mathrm{13}}^1\times {\mathrm{20533}}^1$

素因数の和:20558

約数の個数: 48

約数和(自身を含む): 56057820

約数和(自身を除く): 36838932

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, 20533, 41066, 61599, 82132, 123198, 164264, 184797, 246396, 266929, 369594, 492792, 533858, 739188, 800787, 1067716, 1478376, 1601574, 2135432, 2402361, 3203148, 4804722, 6406296, 9609444, 19218888]

約数ペア:

[(1, 19218888), (2, 9609444), (3, 6406296), (4, 4804722), (6, 3203148), (8, 2402361), (9, 2135432), (12, 1601574), (13, 1478376), (18, 1067716), (24, 800787), (26, 739188), (36, 533858), (39, 492792), (52, 369594), (72, 266929), (78, 246396), (104, 184797), (117, 164264), (156, 123198), (234, 82132), (312, 61599), (468, 41066), (936, 20533)]