17958941

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{233}}^1$

素因数の和:282

約数の個数: 36

約数和(自身を含む): 24835356

約数和(自身を除く): 6876415

約数列:

[1, 7, 11, 13, 49, 77, 91, 121, 143, 233, 539, 637, 847, 1001, 1573, 1631, 2563, 3029, 5929, 7007, 11011, 11417, 17941, 21203, 28193, 33319, 77077, 125587, 148421, 197351, 233233, 366509, 1381457, 1632631, 2565563, 17958941]

約数ペア:

[(1, 17958941), (7, 2565563), (11, 1632631), (13, 1381457), (49, 366509), (77, 233233), (91, 197351), (121, 148421), (143, 125587), (233, 77077), (539, 33319), (637, 28193), (847, 21203), (1001, 17941), (1573, 11417), (1631, 11011), (2563, 7007), (3029, 5929)]