21373128

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{42407}}^1$

素因数の和:42426

約数の個数: 48

約数和(自身を含む): 66156480

約数和(自身を除く): 44783352

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 168, 252, 504, 42407, 84814, 127221, 169628, 254442, 296849, 339256, 381663, 508884, 593698, 763326, 890547, 1017768, 1187396, 1526652, 1781094, 2374792, 2671641, 3053304, 3562188, 5343282, 7124376, 10686564, 21373128]

約数ペア:

[(1, 21373128), (2, 10686564), (3, 7124376), (4, 5343282), (6, 3562188), (7, 3053304), (8, 2671641), (9, 2374792), (12, 1781094), (14, 1526652), (18, 1187396), (21, 1017768), (24, 890547), (28, 763326), (36, 593698), (42, 508884), (56, 381663), (63, 339256), (72, 296849), (84, 254442), (126, 169628), (168, 127221), (252, 84814), (504, 42407)]