21413820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{4889}}^1$

素因数の和:4974

約数の個数: 48

約数和(自身を含む): 60792480

約数和(自身を除く): 39378660

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 73, 146, 219, 292, 365, 438, 730, 876, 1095, 1460, 2190, 4380, 4889, 9778, 14667, 19556, 24445, 29334, 48890, 58668, 73335, 97780, 146670, 293340, 356897, 713794, 1070691, 1427588, 1784485, 2141382, 3568970, 4282764, 5353455, 7137940, 10706910, 21413820]

約数ペア:

[(1, 21413820), (2, 10706910), (3, 7137940), (4, 5353455), (5, 4282764), (6, 3568970), (10, 2141382), (12, 1784485), (15, 1427588), (20, 1070691), (30, 713794), (60, 356897), (73, 293340), (146, 146670), (219, 97780), (292, 73335), (365, 58668), (438, 48890), (730, 29334), (876, 24445), (1095, 19556), (1460, 14667), (2190, 9778), (4380, 4889)]