21406330

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{8461}}^1$

素因数の和:8502

約数の個数: 32

約数和(自身を含む): 43867008

約数和(自身を除く): 22460678

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 230, 253, 506, 1265, 2530, 8461, 16922, 42305, 84610, 93071, 186142, 194603, 389206, 465355, 930710, 973015, 1946030, 2140633, 4281266, 10703165, 21406330]

約数ペア:

[(1, 21406330), (2, 10703165), (5, 4281266), (10, 2140633), (11, 1946030), (22, 973015), (23, 930710), (46, 465355), (55, 389206), (110, 194603), (115, 186142), (230, 93071), (253, 84610), (506, 42305), (1265, 16922), (2530, 8461)]