21215280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{88397}}^1$

素因数の和:88413

約数の個数: 40

約数和(自身を含む): 65768112

約数和(自身を除く): 44552832

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 88397, 176794, 265191, 353588, 441985, 530382, 707176, 883970, 1060764, 1325955, 1414352, 1767940, 2121528, 2651910, 3535880, 4243056, 5303820, 7071760, 10607640, 21215280]

約数ペア:

[(1, 21215280), (2, 10607640), (3, 7071760), (4, 5303820), (5, 4243056), (6, 3535880), (8, 2651910), (10, 2121528), (12, 1767940), (15, 1414352), (16, 1325955), (20, 1060764), (24, 883970), (30, 707176), (40, 530382), (48, 441985), (60, 353588), (80, 265191), (120, 176794), (240, 88397)]