20211580228

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{305477}}^1$

素因数の和:305644

約数の個数: 48

約数和(自身を含む): 43109055360

約数和(自身を除く): 22897475132

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 139, 238, 278, 476, 556, 973, 1946, 2363, 3892, 4726, 9452, 16541, 33082, 66164, 305477, 610954, 1221908, 2138339, 4276678, 5193109, 8553356, 10386218, 20772436, 36351763, 42461303, 72703526, 84922606, 145407052, 169845212, 297229121, 594458242, 721842151, 1188916484, 1443684302, 2887368604, 5052895057, 10105790114, 20211580228]

約数ペア:

[(1, 20211580228), (2, 10105790114), (4, 5052895057), (7, 2887368604), (14, 1443684302), (17, 1188916484), (28, 721842151), (34, 594458242), (68, 297229121), (119, 169845212), (139, 145407052), (238, 84922606), (278, 72703526), (476, 42461303), (556, 36351763), (973, 20772436), (1946, 10386218), (2363, 8553356), (3892, 5193109), (4726, 4276678), (9452, 2138339), (16541, 1221908), (33082, 610954), (66164, 305477)]