21717738

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{10139}}^1$

素因数の和:10171

約数の個数: 48

約数和(自身を含む): 56946240

約数和(自身を除く): 35228502

約数列:

[1, 2, 3, 6, 7, 9, 14, 17, 18, 21, 34, 42, 51, 63, 102, 119, 126, 153, 238, 306, 357, 714, 1071, 2142, 10139, 20278, 30417, 60834, 70973, 91251, 141946, 172363, 182502, 212919, 344726, 425838, 517089, 638757, 1034178, 1206541, 1277514, 1551267, 2413082, 3102534, 3619623, 7239246, 10858869, 21717738]

約数ペア:

[(1, 21717738), (2, 10858869), (3, 7239246), (6, 3619623), (7, 3102534), (9, 2413082), (14, 1551267), (17, 1277514), (18, 1206541), (21, 1034178), (34, 638757), (42, 517089), (51, 425838), (63, 344726), (102, 212919), (119, 182502), (126, 172363), (153, 141946), (238, 91251), (306, 70973), (357, 60834), (714, 30417), (1071, 20278), (2142, 10139)]