21297840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{88741}}^1$

素因数の和:88757

約数の個数: 40

約数和(自身を含む): 66024048

約数和(自身を除く): 44726208

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 88741, 177482, 266223, 354964, 443705, 532446, 709928, 887410, 1064892, 1331115, 1419856, 1774820, 2129784, 2662230, 3549640, 4259568, 5324460, 7099280, 10648920, 21297840]

約数ペア:

[(1, 21297840), (2, 10648920), (3, 7099280), (4, 5324460), (5, 4259568), (6, 3549640), (8, 2662230), (10, 2129784), (12, 1774820), (15, 1419856), (16, 1331115), (20, 1064892), (24, 887410), (30, 709928), (40, 532446), (48, 443705), (60, 354964), (80, 266223), (120, 177482), (240, 88741)]