20153587779

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{808699}}^1$

素因数の和:808792

約数の個数: 32

約数和(自身を含む): 32606784000

約数和(自身を除く): 12453196221

約数列:

[1, 3, 9, 13, 27, 39, 71, 117, 213, 351, 639, 923, 1917, 2769, 8307, 24921, 808699, 2426097, 7278291, 10513087, 21834873, 31539261, 57417629, 94617783, 172252887, 283853349, 516758661, 746429177, 1550275983, 2239287531, 6717862593, 20153587779]

約数ペア:

[(1, 20153587779), (3, 6717862593), (9, 2239287531), (13, 1550275983), (27, 746429177), (39, 516758661), (71, 283853349), (117, 172252887), (213, 94617783), (351, 57417629), (639, 31539261), (923, 21834873), (1917, 10513087), (2769, 7278291), (8307, 2426097), (24921, 808699)]