19919259

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{167}}^1\times {\mathrm{457}}^1$

素因数の和:659

約数の個数: 24

約数和(自身を含む): 30008160

約数和(自身を除く): 10088901

約数列:

[1, 3, 9, 29, 87, 167, 261, 457, 501, 1371, 1503, 4113, 4843, 13253, 14529, 39759, 43587, 76319, 119277, 228957, 686871, 2213251, 6639753, 19919259]

約数ペア:

[(1, 19919259), (3, 6639753), (9, 2213251), (29, 686871), (87, 228957), (167, 119277), (261, 76319), (457, 43587), (501, 39759), (1371, 14529), (1503, 13253), (4113, 4843)]