21371464

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{113}}^1\times {\mathrm{503}}^1$

素因数の和:669

約数の個数: 32

約数和(自身を含む): 41368320

約数和(自身を除く): 19996856

約数列:

[1, 2, 4, 8, 47, 94, 113, 188, 226, 376, 452, 503, 904, 1006, 2012, 4024, 5311, 10622, 21244, 23641, 42488, 47282, 56839, 94564, 113678, 189128, 227356, 454712, 2671433, 5342866, 10685732, 21371464]

約数ペア:

[(1, 21371464), (2, 10685732), (4, 5342866), (8, 2671433), (47, 454712), (94, 227356), (113, 189128), (188, 113678), (226, 94564), (376, 56839), (452, 47282), (503, 42488), (904, 23641), (1006, 21244), (2012, 10622), (4024, 5311)]