19689091011

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{65419}}^1$

素因数の和:65656

約数の個数: 32

約数和(自身を含む): 29768716800

約数和(自身を除く): 10079625789

約数列:

[1, 3, 9, 27, 71, 157, 213, 471, 639, 1413, 1917, 4239, 11147, 33441, 65419, 100323, 196257, 300969, 588771, 1766313, 4644749, 10270783, 13934247, 30812349, 41802741, 92437047, 125408223, 277311141, 729225593, 2187676779, 6563030337, 19689091011]

約数ペア:

[(1, 19689091011), (3, 6563030337), (9, 2187676779), (27, 729225593), (71, 277311141), (157, 125408223), (213, 92437047), (471, 41802741), (639, 30812349), (1413, 13934247), (1917, 10270783), (4239, 4644749), (11147, 1766313), (33441, 588771), (65419, 300969), (100323, 196257)]