19506921

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{40387}}^1$

素因数の和:40420

約数の個数: 16

約数和(自身を含む): 31017984

約数和(自身を除く): 11511063

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 40387, 121161, 282709, 848127, 928901, 2786703, 6502307, 19506921]

約数ペア:

[(1, 19506921), (3, 6502307), (7, 2786703), (21, 928901), (23, 848127), (69, 282709), (161, 121161), (483, 40387)]