20997615168

素因数分解:

$2^6\times 3^2\times {\mathrm{137}}^1\times {\mathrm{266089}}^1$

素因数の和:266244

約数の個数: 84

約数和(自身を含む): 60625413420

約数和(自身を除く): 39627798252

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 64, 72, 96, 137, 144, 192, 274, 288, 411, 548, 576, 822, 1096, 1233, 1644, 2192, 2466, 3288, 4384, 4932, 6576, 8768, 9864, 13152, 19728, 26304, 39456, 78912, 266089, 532178, 798267, 1064356, 1596534, 2128712, 2394801, 3193068, 4257424, 4789602, 6386136, 8514848, 9579204, 12772272, 17029696, 19158408, 25544544, 36454193, 38316816, 51089088, 72908386, 76633632, 109362579, 145816772, 153267264, 218725158, 291633544, 328087737, 437450316, 583267088, 656175474, 874900632, 1166534176, 1312350948, 1749801264, 2333068352, 2624701896, 3499602528, 5249403792, 6999205056, 10498807584, 20997615168]

約数ペア:

[(1, 20997615168), (2, 10498807584), (3, 6999205056), (4, 5249403792), (6, 3499602528), (8, 2624701896), (9, 2333068352), (12, 1749801264), (16, 1312350948), (18, 1166534176), (24, 874900632), (32, 656175474), (36, 583267088), (48, 437450316), (64, 328087737), (72, 291633544), (96, 218725158), (137, 153267264), (144, 145816772), (192, 109362579), (274, 76633632), (288, 72908386), (411, 51089088), (548, 38316816), (576, 36454193), (822, 25544544), (1096, 19158408), (1233, 17029696), (1644, 12772272), (2192, 9579204), (2466, 8514848), (3288, 6386136), (4384, 4789602), (4932, 4257424), (6576, 3193068), (8768, 2394801), (9864, 2128712), (13152, 1596534), (19728, 1064356), (26304, 798267), (39456, 532178), (78912, 266089)]