21431784

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{81181}}^1$

素因数の和:81201

約数の個数: 32

約数和(自身を含む): 58451040

約数和(自身を除く): 37019256

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 88, 132, 264, 81181, 162362, 243543, 324724, 487086, 649448, 892991, 974172, 1785982, 1948344, 2678973, 3571964, 5357946, 7143928, 10715892, 21431784]

約数ペア:

[(1, 21431784), (2, 10715892), (3, 7143928), (4, 5357946), (6, 3571964), (8, 2678973), (11, 1948344), (12, 1785982), (22, 974172), (24, 892991), (33, 649448), (44, 487086), (66, 324724), (88, 243543), (132, 162362), (264, 81181)]