21771386

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{743}}^1$

素因数の和:795

約数の個数: 48

約数和(自身を含む): 42747264

約数和(自身を除く): 20975878

約数列:

[1, 2, 7, 13, 14, 23, 26, 46, 49, 91, 98, 161, 182, 299, 322, 598, 637, 743, 1127, 1274, 1486, 2093, 2254, 4186, 5201, 9659, 10402, 14651, 17089, 19318, 29302, 34178, 36407, 67613, 72814, 119623, 135226, 222157, 239246, 444314, 473291, 837361, 946582, 1555099, 1674722, 3110198, 10885693, 21771386]

約数ペア:

[(1, 21771386), (2, 10885693), (7, 3110198), (13, 1674722), (14, 1555099), (23, 946582), (26, 837361), (46, 473291), (49, 444314), (91, 239246), (98, 222157), (161, 135226), (182, 119623), (299, 72814), (322, 67613), (598, 36407), (637, 34178), (743, 29302), (1127, 19318), (1274, 17089), (1486, 14651), (2093, 10402), (2254, 9659), (4186, 5201)]