20979876

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{167}}^1$

素因数の和:241

約数の個数: 72

約数和(自身を含む): 53766720

約数和(自身を除く): 32786844

約数列:

[1, 2, 3, 4, 6, 12, 19, 29, 38, 57, 58, 76, 87, 114, 116, 167, 174, 228, 334, 348, 361, 501, 551, 668, 722, 1002, 1083, 1102, 1444, 1653, 2004, 2166, 2204, 3173, 3306, 4332, 4843, 6346, 6612, 9519, 9686, 10469, 12692, 14529, 19038, 19372, 20938, 29058, 31407, 38076, 41876, 58116, 60287, 62814, 92017, 120574, 125628, 180861, 184034, 241148, 276051, 361722, 368068, 552102, 723444, 1104204, 1748323, 3496646, 5244969, 6993292, 10489938, 20979876]

約数ペア:

[(1, 20979876), (2, 10489938), (3, 6993292), (4, 5244969), (6, 3496646), (12, 1748323), (19, 1104204), (29, 723444), (38, 552102), (57, 368068), (58, 361722), (76, 276051), (87, 241148), (114, 184034), (116, 180861), (167, 125628), (174, 120574), (228, 92017), (334, 62814), (348, 60287), (361, 58116), (501, 41876), (551, 38076), (668, 31407), (722, 29058), (1002, 20938), (1083, 19372), (1102, 19038), (1444, 14529), (1653, 12692), (2004, 10469), (2166, 9686), (2204, 9519), (3173, 6612), (3306, 6346), (4332, 4843)]