21143568

素因数分解:

$2^4\times 3^1\times {\mathrm{139}}^1\times {\mathrm{3169}}^1$

素因数の和:3319

約数の個数: 40

約数和(自身を含む): 55031200

約数和(自身を除く): 33887632

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 139, 278, 417, 556, 834, 1112, 1668, 2224, 3169, 3336, 6338, 6672, 9507, 12676, 19014, 25352, 38028, 50704, 76056, 152112, 440491, 880982, 1321473, 1761964, 2642946, 3523928, 5285892, 7047856, 10571784, 21143568]

約数ペア:

[(1, 21143568), (2, 10571784), (3, 7047856), (4, 5285892), (6, 3523928), (8, 2642946), (12, 1761964), (16, 1321473), (24, 880982), (48, 440491), (139, 152112), (278, 76056), (417, 50704), (556, 38028), (834, 25352), (1112, 19014), (1668, 12676), (2224, 9507), (3169, 6672), (3336, 6338)]