2097153975

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{210241}}^1$

素因数の和:210280

約数の個数: 48

約数和(自身を含む): 4171201280

約数和(自身を除く): 2074047305

約数列:

[1, 3, 5, 7, 15, 19, 21, 25, 35, 57, 75, 95, 105, 133, 175, 285, 399, 475, 525, 665, 1425, 1995, 3325, 9975, 210241, 630723, 1051205, 1471687, 3153615, 3994579, 4415061, 5256025, 7358435, 11983737, 15768075, 19972895, 22075305, 27962053, 36792175, 59918685, 83886159, 99864475, 110376525, 139810265, 299593425, 419430795, 699051325, 2097153975]

約数ペア:

[(1, 2097153975), (3, 699051325), (5, 419430795), (7, 299593425), (15, 139810265), (19, 110376525), (21, 99864475), (25, 83886159), (35, 59918685), (57, 36792175), (75, 27962053), (95, 22075305), (105, 19972895), (133, 15768075), (175, 11983737), (285, 7358435), (399, 5256025), (475, 4415061), (525, 3994579), (665, 3153615), (1425, 1471687), (1995, 1051205), (3325, 630723), (9975, 210241)]