21097900

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{9173}}^1$

素因数の和:9210

約数の個数: 36

約数和(自身を含む): 47778192

約数和(自身を除く): 26680292

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 92, 100, 115, 230, 460, 575, 1150, 2300, 9173, 18346, 36692, 45865, 91730, 183460, 210979, 229325, 421958, 458650, 843916, 917300, 1054895, 2109790, 4219580, 5274475, 10548950, 21097900]

約数ペア:

[(1, 21097900), (2, 10548950), (4, 5274475), (5, 4219580), (10, 2109790), (20, 1054895), (23, 917300), (25, 843916), (46, 458650), (50, 421958), (92, 229325), (100, 210979), (115, 183460), (230, 91730), (460, 45865), (575, 36692), (1150, 18346), (2300, 9173)]