21454320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{89393}}^1$

素因数の和:89409

約数の個数: 40

約数和(自身を含む): 66509136

約数和(自身を除く): 45054816

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 89393, 178786, 268179, 357572, 446965, 536358, 715144, 893930, 1072716, 1340895, 1430288, 1787860, 2145432, 2681790, 3575720, 4290864, 5363580, 7151440, 10727160, 21454320]

約数ペア:

[(1, 21454320), (2, 10727160), (3, 7151440), (4, 5363580), (5, 4290864), (6, 3575720), (8, 2681790), (10, 2145432), (12, 1787860), (15, 1430288), (16, 1340895), (20, 1072716), (24, 893930), (30, 715144), (40, 536358), (48, 446965), (60, 357572), (80, 268179), (120, 178786), (240, 89393)]