21301528

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{181}}^1\times {\mathrm{313}}^1$

素因数の和:547

約数の個数: 32

約数和(自身を含む): 41146560

約数和(自身を除く): 19845032

約数列:

[1, 2, 4, 8, 47, 94, 181, 188, 313, 362, 376, 626, 724, 1252, 1448, 2504, 8507, 14711, 17014, 29422, 34028, 56653, 58844, 68056, 113306, 117688, 226612, 453224, 2662691, 5325382, 10650764, 21301528]

約数ペア:

[(1, 21301528), (2, 10650764), (4, 5325382), (8, 2662691), (47, 453224), (94, 226612), (181, 117688), (188, 113306), (313, 68056), (362, 58844), (376, 56653), (626, 34028), (724, 29422), (1252, 17014), (1448, 14711), (2504, 8507)]