21000364

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1663}}^1$

素因数の和:1726

約数の個数: 48

約数和(自身を含む): 46964736

約数和(自身を除く): 25964372

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 41, 44, 77, 82, 154, 164, 287, 308, 451, 574, 902, 1148, 1663, 1804, 3157, 3326, 6314, 6652, 11641, 12628, 18293, 23282, 36586, 46564, 68183, 73172, 128051, 136366, 256102, 272732, 477281, 512204, 750013, 954562, 1500026, 1909124, 3000052, 5250091, 10500182, 21000364]

約数ペア:

[(1, 21000364), (2, 10500182), (4, 5250091), (7, 3000052), (11, 1909124), (14, 1500026), (22, 954562), (28, 750013), (41, 512204), (44, 477281), (77, 272732), (82, 256102), (154, 136366), (164, 128051), (287, 73172), (308, 68183), (451, 46564), (574, 36586), (902, 23282), (1148, 18293), (1663, 12628), (1804, 11641), (3157, 6652), (3326, 6314)]