21484864

素因数分解:

$2^6\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1$

素因数の和:303

約数の個数: 56

約数和(自身を含む): 45016928

約数和(自身を除く): 23532064

約数列:

[1, 2, 4, 8, 16, 32, 37, 43, 64, 74, 86, 148, 172, 211, 296, 344, 422, 592, 688, 844, 1184, 1376, 1591, 1688, 2368, 2752, 3182, 3376, 6364, 6752, 7807, 9073, 12728, 13504, 15614, 18146, 25456, 31228, 36292, 50912, 62456, 72584, 101824, 124912, 145168, 249824, 290336, 335701, 499648, 580672, 671402, 1342804, 2685608, 5371216, 10742432, 21484864]

約数ペア:

[(1, 21484864), (2, 10742432), (4, 5371216), (8, 2685608), (16, 1342804), (32, 671402), (37, 580672), (43, 499648), (64, 335701), (74, 290336), (86, 249824), (148, 145168), (172, 124912), (211, 101824), (296, 72584), (344, 62456), (422, 50912), (592, 36292), (688, 31228), (844, 25456), (1184, 18146), (1376, 15614), (1591, 13504), (1688, 12728), (2368, 9073), (2752, 7807), (3182, 6752), (3376, 6364)]