20731657239

素因数分解:

$3^3\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{257}}^1\times {\mathrm{641}}^1$

素因数の和:1045

約数の個数: 64

約数和(自身を含む): 31802112000

約数和(自身を除く): 11070454761

約数列:

[1, 3, 9, 27, 59, 79, 177, 237, 257, 531, 641, 711, 771, 1593, 1923, 2133, 2313, 4661, 5769, 6939, 13983, 15163, 17307, 20303, 37819, 41949, 45489, 50639, 60909, 113457, 125847, 136467, 151917, 164737, 182727, 340371, 409401, 455751, 494211, 548181, 1021113, 1197877, 1367253, 1482633, 2987701, 3593631, 4447899, 8963103, 9719483, 10780893, 13014223, 26889309, 29158449, 32342679, 39042669, 80667927, 87475347, 117128007, 262426041, 351384021, 767839157, 2303517471, 6910552413, 20731657239]

約数ペア:

[(1, 20731657239), (3, 6910552413), (9, 2303517471), (27, 767839157), (59, 351384021), (79, 262426041), (177, 117128007), (237, 87475347), (257, 80667927), (531, 39042669), (641, 32342679), (711, 29158449), (771, 26889309), (1593, 13014223), (1923, 10780893), (2133, 9719483), (2313, 8963103), (4661, 4447899), (5769, 3593631), (6939, 2987701), (13983, 1482633), (15163, 1367253), (17307, 1197877), (20303, 1021113), (37819, 548181), (41949, 494211), (45489, 455751), (50639, 409401), (60909, 340371), (113457, 182727), (125847, 164737), (136467, 151917)]