81413157

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{283}}^1$

素因数の和:422

約数の個数: 48

約数和(自身を含む): 134684160

約数和(自身を除く): 53271003

約数列:

[1, 3, 7, 19, 21, 49, 57, 103, 133, 147, 283, 309, 399, 721, 849, 931, 1957, 1981, 2163, 2793, 5047, 5377, 5871, 5943, 13699, 13867, 15141, 16131, 29149, 37639, 41097, 41601, 87447, 95893, 112917, 204043, 263473, 287679, 553831, 612129, 790419, 1428301, 1661493, 3876817, 4284903, 11630451, 27137719, 81413157]

約数ペア:

[(1, 81413157), (3, 27137719), (7, 11630451), (19, 4284903), (21, 3876817), (49, 1661493), (57, 1428301), (103, 790419), (133, 612129), (147, 553831), (283, 287679), (309, 263473), (399, 204043), (721, 112917), (849, 95893), (931, 87447), (1957, 41601), (1981, 41097), (2163, 37639), (2793, 29149), (5047, 16131), (5377, 15141), (5871, 13867), (5943, 13699)]