19645227

素因数分解:

$3^3\times 7^2\times {\mathrm{31}}^1\times {\mathrm{479}}^1$

素因数の和:533

約数の個数: 48

約数和(自身を含む): 35020800

約数和(自身を除く): 15375573

約数列:

[1, 3, 7, 9, 21, 27, 31, 49, 63, 93, 147, 189, 217, 279, 441, 479, 651, 837, 1323, 1437, 1519, 1953, 3353, 4311, 4557, 5859, 10059, 12933, 13671, 14849, 23471, 30177, 41013, 44547, 70413, 90531, 103943, 133641, 211239, 311829, 400923, 633717, 727601, 935487, 2182803, 2806461, 6548409, 19645227]

約数ペア:

[(1, 19645227), (3, 6548409), (7, 2806461), (9, 2182803), (21, 935487), (27, 727601), (31, 633717), (49, 400923), (63, 311829), (93, 211239), (147, 133641), (189, 103943), (217, 90531), (279, 70413), (441, 44547), (479, 41013), (651, 30177), (837, 23471), (1323, 14849), (1437, 13671), (1519, 12933), (1953, 10059), (3353, 5859), (4311, 4557)]