18873141

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{547}}^1$

素因数の和:641

約数の個数: 32

約数和(自身を含む): 30302208

約数和(自身を除く): 11429067

約数列:

[1, 3, 7, 21, 31, 53, 93, 159, 217, 371, 547, 651, 1113, 1641, 1643, 3829, 4929, 11487, 11501, 16957, 28991, 34503, 50871, 86973, 118699, 202937, 356097, 608811, 898721, 2696163, 6291047, 18873141]

約数ペア:

[(1, 18873141), (3, 6291047), (7, 2696163), (21, 898721), (31, 608811), (53, 356097), (93, 202937), (159, 118699), (217, 86973), (371, 50871), (547, 34503), (651, 28991), (1113, 16957), (1641, 11501), (1643, 11487), (3829, 4929)]