21512174432

素因数分解:

$2^5\times 7^2\times {\mathrm{131}}^1\times {\mathrm{104729}}^1$

素因数の和:104884

約数の個数: 72

約数和(自身を含む): 49643276760

約数和(自身を除く): 28131102328

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 131, 196, 224, 262, 392, 524, 784, 917, 1048, 1568, 1834, 2096, 3668, 4192, 6419, 7336, 12838, 14672, 25676, 29344, 51352, 102704, 104729, 205408, 209458, 418916, 733103, 837832, 1466206, 1675664, 2932412, 3351328, 5131721, 5864824, 10263442, 11729648, 13719499, 20526884, 23459296, 27438998, 41053768, 54877996, 82107536, 96036493, 109755992, 164215072, 192072986, 219511984, 384145972, 439023968, 672255451, 768291944, 1344510902, 1536583888, 2689021804, 3073167776, 5378043608, 10756087216, 21512174432]

約数ペア:

[(1, 21512174432), (2, 10756087216), (4, 5378043608), (7, 3073167776), (8, 2689021804), (14, 1536583888), (16, 1344510902), (28, 768291944), (32, 672255451), (49, 439023968), (56, 384145972), (98, 219511984), (112, 192072986), (131, 164215072), (196, 109755992), (224, 96036493), (262, 82107536), (392, 54877996), (524, 41053768), (784, 27438998), (917, 23459296), (1048, 20526884), (1568, 13719499), (1834, 11729648), (2096, 10263442), (3668, 5864824), (4192, 5131721), (6419, 3351328), (7336, 2932412), (12838, 1675664), (14672, 1466206), (25676, 837832), (29344, 733103), (51352, 418916), (102704, 209458), (104729, 205408)]