21450456

素因数分解:

$2^3\times 3^2\times {\mathrm{151}}^1\times {\mathrm{1973}}^1$

素因数の和:2136

約数の個数: 48

約数和(自身を含む): 58509360

約数和(自身を除く): 37058904

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 151, 302, 453, 604, 906, 1208, 1359, 1812, 1973, 2718, 3624, 3946, 5436, 5919, 7892, 10872, 11838, 15784, 17757, 23676, 35514, 47352, 71028, 142056, 297923, 595846, 893769, 1191692, 1787538, 2383384, 2681307, 3575076, 5362614, 7150152, 10725228, 21450456]

約数ペア:

[(1, 21450456), (2, 10725228), (3, 7150152), (4, 5362614), (6, 3575076), (8, 2681307), (9, 2383384), (12, 1787538), (18, 1191692), (24, 893769), (36, 595846), (72, 297923), (151, 142056), (302, 71028), (453, 47352), (604, 35514), (906, 23676), (1208, 17757), (1359, 15784), (1812, 11838), (1973, 10872), (2718, 7892), (3624, 5919), (3946, 5436)]