20996856128

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{271811}}^1$

素因数の和:271911

約数の個数: 56

約数和(自身を含む): 44738080704

約数和(自身を除く): 23741224576

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 64, 68, 71, 136, 142, 272, 284, 544, 568, 1088, 1136, 1207, 2272, 2414, 4544, 4828, 9656, 19312, 38624, 77248, 271811, 543622, 1087244, 2174488, 4348976, 4620787, 8697952, 9241574, 17395904, 18483148, 19298581, 36966296, 38597162, 73932592, 77194324, 147865184, 154388648, 295730368, 308777296, 328075877, 617554592, 656151754, 1235109184, 1312303508, 2624607016, 5249214032, 10498428064, 20996856128]

約数ペア:

[(1, 20996856128), (2, 10498428064), (4, 5249214032), (8, 2624607016), (16, 1312303508), (17, 1235109184), (32, 656151754), (34, 617554592), (64, 328075877), (68, 308777296), (71, 295730368), (136, 154388648), (142, 147865184), (272, 77194324), (284, 73932592), (544, 38597162), (568, 36966296), (1088, 19298581), (1136, 18483148), (1207, 17395904), (2272, 9241574), (2414, 8697952), (4544, 4620787), (4828, 4348976), (9656, 2174488), (19312, 1087244), (38624, 543622), (77248, 271811)]