21951710

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{1013}}^1$

素因数の和:1228

約数の個数: 32

約数和(自身を含む): 43366752

約数和(自身を除く): 21415042

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 197, 394, 985, 1013, 1970, 2026, 2167, 4334, 5065, 10130, 10835, 11143, 21670, 22286, 55715, 111430, 199561, 399122, 997805, 1995610, 2195171, 4390342, 10975855, 21951710]

約数ペア:

[(1, 21951710), (2, 10975855), (5, 4390342), (10, 2195171), (11, 1995610), (22, 997805), (55, 399122), (110, 199561), (197, 111430), (394, 55715), (985, 22286), (1013, 21670), (1970, 11143), (2026, 10835), (2167, 10130), (4334, 5065)]