21965004

素因数分解:

$2^2\times 3^2\times {\mathrm{503}}^1\times {\mathrm{1213}}^1$

素因数の和:1726

約数の個数: 36

約数和(自身を含む): 55678896

約数和(自身を除く): 33713892

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 503, 1006, 1213, 1509, 2012, 2426, 3018, 3639, 4527, 4852, 6036, 7278, 9054, 10917, 14556, 18108, 21834, 43668, 610139, 1220278, 1830417, 2440556, 3660834, 5491251, 7321668, 10982502, 21965004]

約数ペア:

[(1, 21965004), (2, 10982502), (3, 7321668), (4, 5491251), (6, 3660834), (9, 2440556), (12, 1830417), (18, 1220278), (36, 610139), (503, 43668), (1006, 21834), (1213, 18108), (1509, 14556), (2012, 10917), (2426, 9054), (3018, 7278), (3639, 6036), (4527, 4852)]