18922904

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1$

素因数の和:193

約数の個数: 128

約数和(自身を含む): 50803200

約数和(自身を除く): 31880296

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 17, 22, 26, 28, 34, 44, 52, 56, 68, 77, 88, 91, 104, 119, 136, 139, 143, 154, 182, 187, 221, 238, 278, 286, 308, 364, 374, 442, 476, 556, 572, 616, 728, 748, 884, 952, 973, 1001, 1112, 1144, 1309, 1496, 1529, 1547, 1768, 1807, 1946, 2002, 2363, 2431, 2618, 3058, 3094, 3614, 3892, 4004, 4726, 4862, 5236, 6116, 6188, 7228, 7784, 8008, 9452, 9724, 10472, 10703, 12232, 12376, 12649, 14456, 16541, 17017, 18904, 19448, 19877, 21406, 25298, 25993, 30719, 33082, 34034, 39754, 42812, 50596, 51986, 61438, 66164, 68068, 79508, 85624, 101192, 103972, 122876, 132328, 136136, 139139, 159016, 181951, 207944, 215033, 245752, 278278, 337909, 363902, 430066, 556556, 675818, 727804, 860132, 1113112, 1351636, 1455608, 1720264, 2365363, 2703272, 4730726, 9461452, 18922904]

約数ペア:

[(1, 18922904), (2, 9461452), (4, 4730726), (7, 2703272), (8, 2365363), (11, 1720264), (13, 1455608), (14, 1351636), (17, 1113112), (22, 860132), (26, 727804), (28, 675818), (34, 556556), (44, 430066), (52, 363902), (56, 337909), (68, 278278), (77, 245752), (88, 215033), (91, 207944), (104, 181951), (119, 159016), (136, 139139), (139, 136136), (143, 132328), (154, 122876), (182, 103972), (187, 101192), (221, 85624), (238, 79508), (278, 68068), (286, 66164), (308, 61438), (364, 51986), (374, 50596), (442, 42812), (476, 39754), (556, 34034), (572, 33082), (616, 30719), (728, 25993), (748, 25298), (884, 21406), (952, 19877), (973, 19448), (1001, 18904), (1112, 17017), (1144, 16541), (1309, 14456), (1496, 12649), (1529, 12376), (1547, 12232), (1768, 10703), (1807, 10472), (1946, 9724), (2002, 9452), (2363, 8008), (2431, 7784), (2618, 7228), (3058, 6188), (3094, 6116), (3614, 5236), (3892, 4862), (4004, 4726)]