21826288

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:206

約数の個数: 80

約数和(自身を含む): 49818240

約数和(自身を除く): 27991952

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 61, 76, 88, 107, 122, 152, 176, 209, 214, 244, 304, 418, 428, 488, 671, 836, 856, 976, 1159, 1177, 1342, 1672, 1712, 2033, 2318, 2354, 2684, 3344, 4066, 4636, 4708, 5368, 6527, 8132, 9272, 9416, 10736, 12749, 13054, 16264, 18544, 18832, 22363, 25498, 26108, 32528, 44726, 50996, 52216, 71797, 89452, 101992, 104432, 124013, 143594, 178904, 203984, 248026, 287188, 357808, 496052, 574376, 992104, 1148752, 1364143, 1984208, 2728286, 5456572, 10913144, 21826288]

約数ペア:

[(1, 21826288), (2, 10913144), (4, 5456572), (8, 2728286), (11, 1984208), (16, 1364143), (19, 1148752), (22, 992104), (38, 574376), (44, 496052), (61, 357808), (76, 287188), (88, 248026), (107, 203984), (122, 178904), (152, 143594), (176, 124013), (209, 104432), (214, 101992), (244, 89452), (304, 71797), (418, 52216), (428, 50996), (488, 44726), (671, 32528), (836, 26108), (856, 25498), (976, 22363), (1159, 18832), (1177, 18544), (1342, 16264), (1672, 13054), (1712, 12749), (2033, 10736), (2318, 9416), (2354, 9272), (2684, 8132), (3344, 6527), (4066, 5368), (4636, 4708)]