19704843

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{541}}^1$

素因数の和:640

約数の個数: 32

約数和(自身を含む): 31219200

約数和(自身を除く): 11514357

約数列:

[1, 3, 9, 19, 27, 57, 71, 171, 213, 513, 541, 639, 1349, 1623, 1917, 4047, 4869, 10279, 12141, 14607, 30837, 36423, 38411, 92511, 115233, 277533, 345699, 729809, 1037097, 2189427, 6568281, 19704843]

約数ペア:

[(1, 19704843), (3, 6568281), (9, 2189427), (19, 1037097), (27, 729809), (57, 345699), (71, 277533), (171, 115233), (213, 92511), (513, 38411), (541, 36423), (639, 30837), (1349, 14607), (1623, 12141), (1917, 10279), (4047, 4869)]