21002772

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1553}}^1$

素因数の和:1597

約数の個数: 72

約数和(自身を含む): 59524416

約数和(自身を除く): 38521644

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 23, 28, 42, 46, 49, 69, 84, 92, 98, 138, 147, 161, 196, 276, 294, 322, 483, 588, 644, 966, 1127, 1553, 1932, 2254, 3106, 3381, 4508, 4659, 6212, 6762, 9318, 10871, 13524, 18636, 21742, 32613, 35719, 43484, 65226, 71438, 76097, 107157, 130452, 142876, 152194, 214314, 228291, 250033, 304388, 428628, 456582, 500066, 750099, 913164, 1000132, 1500198, 1750231, 3000396, 3500462, 5250693, 7000924, 10501386, 21002772]

約数ペア:

[(1, 21002772), (2, 10501386), (3, 7000924), (4, 5250693), (6, 3500462), (7, 3000396), (12, 1750231), (14, 1500198), (21, 1000132), (23, 913164), (28, 750099), (42, 500066), (46, 456582), (49, 428628), (69, 304388), (84, 250033), (92, 228291), (98, 214314), (138, 152194), (147, 142876), (161, 130452), (196, 107157), (276, 76097), (294, 71438), (322, 65226), (483, 43484), (588, 35719), (644, 32613), (966, 21742), (1127, 18636), (1553, 13524), (1932, 10871), (2254, 9318), (3106, 6762), (3381, 6212), (4508, 4659)]