21407398137

素因数分解:

$3^2\times {\mathrm{101}}^1\times {\mathrm{149}}^1\times {\mathrm{179}}^1\times {\mathrm{883}}^1$

素因数の和:1318

約数の個数: 48

約数和(自身を含む): 31648968000

約数和(自身を除く): 10241569863

約数列:

[1, 3, 9, 101, 149, 179, 303, 447, 537, 883, 909, 1341, 1611, 2649, 7947, 15049, 18079, 26671, 45147, 54237, 80013, 89183, 131567, 135441, 158057, 162711, 240039, 267549, 394701, 474171, 802647, 1184103, 1422513, 2693771, 8081313, 13288267, 15963757, 23550493, 24243939, 39864801, 47891271, 70651479, 119594403, 143673813, 211954437, 2378599793, 7135799379, 21407398137]

約数ペア:

[(1, 21407398137), (3, 7135799379), (9, 2378599793), (101, 211954437), (149, 143673813), (179, 119594403), (303, 70651479), (447, 47891271), (537, 39864801), (883, 24243939), (909, 23550493), (1341, 15963757), (1611, 13288267), (2649, 8081313), (7947, 2693771), (15049, 1422513), (18079, 1184103), (26671, 802647), (45147, 474171), (54237, 394701), (80013, 267549), (89183, 240039), (131567, 162711), (135441, 158057)]