21447120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{89363}}^1$

素因数の和:89379

約数の個数: 40

約数和(自身を含む): 66486816

約数和(自身を除く): 45039696

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 89363, 178726, 268089, 357452, 446815, 536178, 714904, 893630, 1072356, 1340445, 1429808, 1787260, 2144712, 2680890, 3574520, 4289424, 5361780, 7149040, 10723560, 21447120]

約数ペア:

[(1, 21447120), (2, 10723560), (3, 7149040), (4, 5361780), (5, 4289424), (6, 3574520), (8, 2680890), (10, 2144712), (12, 1787260), (15, 1429808), (16, 1340445), (20, 1072356), (24, 893630), (30, 714904), (40, 536178), (48, 446815), (60, 357452), (80, 268089), (120, 178726), (240, 89363)]