21478833

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{1217}}^1$

素因数の和:1313

約数の個数: 24

約数和(自身を含む): 32491368

約数和(自身を除く): 11012535

約数列:

[1, 3, 9, 37, 53, 111, 159, 333, 477, 1217, 1961, 3651, 5883, 10953, 17649, 45029, 64501, 135087, 193503, 405261, 580509, 2386537, 7159611, 21478833]

約数ペア:

[(1, 21478833), (3, 7159611), (9, 2386537), (37, 580509), (53, 405261), (111, 193503), (159, 135087), (333, 64501), (477, 45029), (1217, 17649), (1961, 10953), (3651, 5883)]