20979816

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{6113}}^1$

素因数の和:6146

約数の個数: 64

約数和(自身を含む): 61629120

約数和(自身を除く): 40649304

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 13, 22, 24, 26, 33, 39, 44, 52, 66, 78, 88, 104, 132, 143, 156, 264, 286, 312, 429, 572, 858, 1144, 1716, 3432, 6113, 12226, 18339, 24452, 36678, 48904, 67243, 73356, 79469, 134486, 146712, 158938, 201729, 238407, 268972, 317876, 403458, 476814, 537944, 635752, 806916, 874159, 953628, 1613832, 1748318, 1907256, 2622477, 3496636, 5244954, 6993272, 10489908, 20979816]

約数ペア:

[(1, 20979816), (2, 10489908), (3, 6993272), (4, 5244954), (6, 3496636), (8, 2622477), (11, 1907256), (12, 1748318), (13, 1613832), (22, 953628), (24, 874159), (26, 806916), (33, 635752), (39, 537944), (44, 476814), (52, 403458), (66, 317876), (78, 268972), (88, 238407), (104, 201729), (132, 158938), (143, 146712), (156, 134486), (264, 79469), (286, 73356), (312, 67243), (429, 48904), (572, 36678), (858, 24452), (1144, 18339), (1716, 12226), (3432, 6113)]