28291238241

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{13003}}^1$

素因数の和:13099

約数の個数: 72

約数和(自身を含む): 47444521824

約数和(自身を除く): 19153283583

約数列:

[1, 3, 7, 19, 21, 41, 49, 57, 123, 133, 147, 287, 361, 399, 779, 861, 931, 1083, 2009, 2337, 2527, 2793, 5453, 6027, 7581, 13003, 14801, 16359, 17689, 38171, 39009, 44403, 53067, 91021, 103607, 114513, 247057, 273063, 310821, 533123, 637147, 725249, 741171, 1599369, 1729399, 1911441, 2175747, 3731861, 4694083, 5188197, 10129337, 11195583, 12105793, 14082249, 26123027, 30388011, 32858581, 36317379, 70905359, 78369081, 98575743, 192457403, 212716077, 230010067, 496337513, 577372209, 690030201, 1347201821, 1489012539, 4041605463, 9430412747, 28291238241]

約数ペア:

[(1, 28291238241), (3, 9430412747), (7, 4041605463), (19, 1489012539), (21, 1347201821), (41, 690030201), (49, 577372209), (57, 496337513), (123, 230010067), (133, 212716077), (147, 192457403), (287, 98575743), (361, 78369081), (399, 70905359), (779, 36317379), (861, 32858581), (931, 30388011), (1083, 26123027), (2009, 14082249), (2337, 12105793), (2527, 11195583), (2793, 10129337), (5453, 5188197), (6027, 4694083), (7581, 3731861), (13003, 2175747), (14801, 1911441), (16359, 1729399), (17689, 1599369), (38171, 741171), (39009, 725249), (44403, 637147), (53067, 533123), (91021, 310821), (103607, 273063), (114513, 247057)]