21405516

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{9539}}^1$

素因数の和:9574

約数の個数: 48

約数和(自身を含む): 57697920

約数和(自身を除く): 36292404

約数列:

[1, 2, 3, 4, 6, 11, 12, 17, 22, 33, 34, 44, 51, 66, 68, 102, 132, 187, 204, 374, 561, 748, 1122, 2244, 9539, 19078, 28617, 38156, 57234, 104929, 114468, 162163, 209858, 314787, 324326, 419716, 486489, 629574, 648652, 972978, 1259148, 1783793, 1945956, 3567586, 5351379, 7135172, 10702758, 21405516]

約数ペア:

[(1, 21405516), (2, 10702758), (3, 7135172), (4, 5351379), (6, 3567586), (11, 1945956), (12, 1783793), (17, 1259148), (22, 972978), (33, 648652), (34, 629574), (44, 486489), (51, 419716), (66, 324326), (68, 314787), (102, 209858), (132, 162163), (187, 114468), (204, 104929), (374, 57234), (561, 38156), (748, 28617), (1122, 19078), (2244, 9539)]