20723775

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{14543}}^1$

素因数の和:14575

約数の個数: 24

約数和(自身を含む): 36069120

約数和(自身を除く): 15345345

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 285, 475, 1425, 14543, 43629, 72715, 218145, 276317, 363575, 828951, 1090725, 1381585, 4144755, 6907925, 20723775]

約数ペア:

[(1, 20723775), (3, 6907925), (5, 4144755), (15, 1381585), (19, 1090725), (25, 828951), (57, 363575), (75, 276317), (95, 218145), (285, 72715), (475, 43629), (1425, 14543)]