15688281

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:214

約数の個数: 48

約数和(自身を含む): 26429760

約数和(自身を除く): 10741479

約数列:

[1, 3, 7, 19, 21, 41, 49, 57, 123, 133, 137, 147, 287, 399, 411, 779, 861, 931, 959, 2009, 2337, 2603, 2793, 2877, 5453, 5617, 6027, 6713, 7809, 16359, 16851, 18221, 20139, 38171, 39319, 54663, 106723, 114513, 117957, 127547, 275233, 320169, 382641, 747061, 825699, 2241183, 5229427, 15688281]

約数ペア:

[(1, 15688281), (3, 5229427), (7, 2241183), (19, 825699), (21, 747061), (41, 382641), (49, 320169), (57, 275233), (123, 127547), (133, 117957), (137, 114513), (147, 106723), (287, 54663), (399, 39319), (411, 38171), (779, 20139), (861, 18221), (931, 16851), (959, 16359), (2009, 7809), (2337, 6713), (2603, 6027), (2793, 5617), (2877, 5453)]