19345768

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{349}}^1$

素因数の和:422

約数の個数: 48

約数和(自身を含む): 40351500

約数和(自身を除く): 21005732

約数列:

[1, 2, 4, 8, 13, 26, 41, 52, 82, 104, 164, 169, 328, 338, 349, 533, 676, 698, 1066, 1352, 1396, 2132, 2792, 4264, 4537, 6929, 9074, 13858, 14309, 18148, 27716, 28618, 36296, 55432, 57236, 58981, 114472, 117962, 186017, 235924, 372034, 471848, 744068, 1488136, 2418221, 4836442, 9672884, 19345768]

約数ペア:

[(1, 19345768), (2, 9672884), (4, 4836442), (8, 2418221), (13, 1488136), (26, 744068), (41, 471848), (52, 372034), (82, 235924), (104, 186017), (164, 117962), (169, 114472), (328, 58981), (338, 57236), (349, 55432), (533, 36296), (676, 28618), (698, 27716), (1066, 18148), (1352, 14309), (1396, 13858), (2132, 9074), (2792, 6929), (4264, 4537)]