21879935

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{3343}}^1$

素因数の和:3383

約数の個数: 32

約数和(自身を含む): 34670592

約数和(自身を除く): 12790657

約数列:

[1, 5, 7, 11, 17, 35, 55, 77, 85, 119, 187, 385, 595, 935, 1309, 3343, 6545, 16715, 23401, 36773, 56831, 117005, 183865, 257411, 284155, 397817, 625141, 1287055, 1989085, 3125705, 4375987, 21879935]

約数ペア:

[(1, 21879935), (5, 4375987), (7, 3125705), (11, 1989085), (17, 1287055), (35, 625141), (55, 397817), (77, 284155), (85, 257411), (119, 183865), (187, 117005), (385, 56831), (595, 36773), (935, 23401), (1309, 16715), (3343, 6545)]