20807876271

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{619}}^1\times {\mathrm{2087}}^1$

素因数の和:2788

約数の個数: 64

約数和(自身を含む): 34797772800

約数和(自身を除く): 13989896529

約数列:

[1, 3, 7, 13, 21, 39, 59, 91, 177, 273, 413, 619, 767, 1239, 1857, 2087, 2301, 4333, 5369, 6261, 8047, 12999, 14609, 16107, 24141, 27131, 36521, 43827, 56329, 81393, 109563, 123133, 168987, 189917, 255647, 369399, 474773, 569751, 766941, 861931, 1291853, 1424319, 1600729, 2585793, 3323411, 3875559, 4802187, 9042971, 9970233, 11205103, 16794089, 27128913, 33615309, 50382267, 76219327, 117558623, 228657981, 352675869, 533535289, 990851251, 1600605867, 2972553753, 6935958757, 20807876271]

約数ペア:

[(1, 20807876271), (3, 6935958757), (7, 2972553753), (13, 1600605867), (21, 990851251), (39, 533535289), (59, 352675869), (91, 228657981), (177, 117558623), (273, 76219327), (413, 50382267), (619, 33615309), (767, 27128913), (1239, 16794089), (1857, 11205103), (2087, 9970233), (2301, 9042971), (4333, 4802187), (5369, 3875559), (6261, 3323411), (8047, 2585793), (12999, 1600729), (14609, 1424319), (16107, 1291853), (24141, 861931), (27131, 766941), (36521, 569751), (43827, 474773), (56329, 369399), (81393, 255647), (109563, 189917), (123133, 168987)]