21253024

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1087}}^1$

素因数の和:1157

約数の個数: 48

約数和(自身を含む): 46061568

約数和(自身を除く): 24808544

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 47, 52, 94, 104, 188, 208, 376, 416, 611, 752, 1087, 1222, 1504, 2174, 2444, 4348, 4888, 8696, 9776, 14131, 17392, 19552, 28262, 34784, 51089, 56524, 102178, 113048, 204356, 226096, 408712, 452192, 664157, 817424, 1328314, 1634848, 2656628, 5313256, 10626512, 21253024]

約数ペア:

[(1, 21253024), (2, 10626512), (4, 5313256), (8, 2656628), (13, 1634848), (16, 1328314), (26, 817424), (32, 664157), (47, 452192), (52, 408712), (94, 226096), (104, 204356), (188, 113048), (208, 102178), (376, 56524), (416, 51089), (611, 34784), (752, 28262), (1087, 19552), (1222, 17392), (1504, 14131), (2174, 9776), (2444, 8696), (4348, 4888)]