20848828

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1$

素因数の和:203

約数の個数: 96

約数和(自身を含む): 50577408

約数和(自身を除く): 29728580

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 41, 44, 52, 77, 82, 91, 127, 143, 154, 164, 182, 254, 286, 287, 308, 364, 451, 508, 533, 572, 574, 889, 902, 1001, 1066, 1148, 1397, 1651, 1778, 1804, 2002, 2132, 2794, 3157, 3302, 3556, 3731, 4004, 5207, 5588, 5863, 6314, 6604, 7462, 9779, 10414, 11557, 11726, 12628, 14924, 18161, 19558, 20828, 23114, 23452, 36322, 36449, 39116, 41041, 46228, 57277, 67691, 72644, 72898, 82082, 114554, 127127, 135382, 145796, 164164, 229108, 254254, 270764, 400939, 473837, 508508, 744601, 801878, 947674, 1489202, 1603756, 1895348, 2978404, 5212207, 10424414, 20848828]

約数ペア:

[(1, 20848828), (2, 10424414), (4, 5212207), (7, 2978404), (11, 1895348), (13, 1603756), (14, 1489202), (22, 947674), (26, 801878), (28, 744601), (41, 508508), (44, 473837), (52, 400939), (77, 270764), (82, 254254), (91, 229108), (127, 164164), (143, 145796), (154, 135382), (164, 127127), (182, 114554), (254, 82082), (286, 72898), (287, 72644), (308, 67691), (364, 57277), (451, 46228), (508, 41041), (533, 39116), (572, 36449), (574, 36322), (889, 23452), (902, 23114), (1001, 20828), (1066, 19558), (1148, 18161), (1397, 14924), (1651, 12628), (1778, 11726), (1804, 11557), (2002, 10414), (2132, 9779), (2794, 7462), (3157, 6604), (3302, 6314), (3556, 5863), (3731, 5588), (4004, 5207)]