18903717

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{4919}}^1$

素因数の和:4993

約数の個数: 24

約数和(自身を含む): 31724160

約数和(自身を除く): 12820443

約数列:

[1, 3, 7, 9, 21, 61, 63, 183, 427, 549, 1281, 3843, 4919, 14757, 34433, 44271, 103299, 300059, 309897, 900177, 2100413, 2700531, 6301239, 18903717]

約数ペア:

[(1, 18903717), (3, 6301239), (7, 2700531), (9, 2100413), (21, 900177), (61, 309897), (63, 300059), (183, 103299), (427, 44271), (549, 34433), (1281, 14757), (3843, 4919)]