19822785

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{421}}^1$

素因数の和:545

約数の個数: 32

約数和(自身を含む): 32976768

約数和(自身を除く): 13153983

約数列:

[1, 3, 5, 15, 43, 73, 129, 215, 219, 365, 421, 645, 1095, 1263, 2105, 3139, 6315, 9417, 15695, 18103, 30733, 47085, 54309, 90515, 92199, 153665, 271545, 460995, 1321519, 3964557, 6607595, 19822785]

約数ペア:

[(1, 19822785), (3, 6607595), (5, 3964557), (15, 1321519), (43, 460995), (73, 271545), (129, 153665), (215, 92199), (219, 90515), (365, 54309), (421, 47085), (645, 30733), (1095, 18103), (1263, 15695), (2105, 9417), (3139, 6315)]