21231120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{88463}}^1$

素因数の和:88479

約数の個数: 40

約数和(自身を含む): 65817216

約数和(自身を除く): 44586096

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 88463, 176926, 265389, 353852, 442315, 530778, 707704, 884630, 1061556, 1326945, 1415408, 1769260, 2123112, 2653890, 3538520, 4246224, 5307780, 7077040, 10615560, 21231120]

約数ペア:

[(1, 21231120), (2, 10615560), (3, 7077040), (4, 5307780), (5, 4246224), (6, 3538520), (8, 2653890), (10, 2123112), (12, 1769260), (15, 1415408), (16, 1326945), (20, 1061556), (24, 884630), (30, 707704), (40, 530778), (48, 442315), (60, 353852), (80, 265389), (120, 176926), (240, 88463)]