21142458

素因数分解:

$2^1\times 3^6\times {\mathrm{17}}^1\times {\mathrm{853}}^1$

素因数の和:890

約数の個数: 56

約数和(自身を含む): 50404788

約数和(自身を除く): 29262330

約数列:

[1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 81, 102, 153, 162, 243, 306, 459, 486, 729, 853, 918, 1377, 1458, 1706, 2559, 2754, 4131, 5118, 7677, 8262, 12393, 14501, 15354, 23031, 24786, 29002, 43503, 46062, 69093, 87006, 130509, 138186, 207279, 261018, 391527, 414558, 621837, 783054, 1174581, 1243674, 2349162, 3523743, 7047486, 10571229, 21142458]

約数ペア:

[(1, 21142458), (2, 10571229), (3, 7047486), (6, 3523743), (9, 2349162), (17, 1243674), (18, 1174581), (27, 783054), (34, 621837), (51, 414558), (54, 391527), (81, 261018), (102, 207279), (153, 138186), (162, 130509), (243, 87006), (306, 69093), (459, 46062), (486, 43503), (729, 29002), (853, 24786), (918, 23031), (1377, 15354), (1458, 14501), (1706, 12393), (2559, 8262), (2754, 7677), (4131, 5118)]