221511272

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{373}}^1\times {\mathrm{3907}}^1$

素因数の和:4305

約数の個数: 32

約数和(自身を含む): 438477600

約数和(自身を除く): 216966328

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 373, 746, 1492, 2984, 3907, 7087, 7814, 14174, 15628, 28348, 31256, 56696, 74233, 148466, 296932, 593864, 1457311, 2914622, 5829244, 11658488, 27688909, 55377818, 110755636, 221511272]

約数ペア:

[(1, 221511272), (2, 110755636), (4, 55377818), (8, 27688909), (19, 11658488), (38, 5829244), (76, 2914622), (152, 1457311), (373, 593864), (746, 296932), (1492, 148466), (2984, 74233), (3907, 56696), (7087, 31256), (7814, 28348), (14174, 15628)]