215438385

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1\times {\mathrm{1583}}^1$

素因数の和:1845

約数の個数: 32

約数和(自身を含む): 354613248

約数和(自身を除く): 139174863

約数列:

[1, 3, 5, 15, 43, 129, 211, 215, 633, 645, 1055, 1583, 3165, 4749, 7915, 9073, 23745, 27219, 45365, 68069, 136095, 204207, 334013, 340345, 1002039, 1021035, 1670065, 5010195, 14362559, 43087677, 71812795, 215438385]

約数ペア:

[(1, 215438385), (3, 71812795), (5, 43087677), (15, 14362559), (43, 5010195), (129, 1670065), (211, 1021035), (215, 1002039), (633, 340345), (645, 334013), (1055, 204207), (1583, 136095), (3165, 68069), (4749, 45365), (7915, 27219), (9073, 23745)]