18828873

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^2\times {\mathrm{311}}^1$

素因数の和:386

約数の個数: 36

約数和(自身を含む): 32220864

約数和(自身を除く): 13391991

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 311, 651, 933, 961, 1953, 2177, 2799, 2883, 6531, 6727, 8649, 9641, 19593, 20181, 28923, 60543, 67487, 86769, 202461, 298871, 607383, 896613, 2092097, 2689839, 6276291, 18828873]

約数ペア:

[(1, 18828873), (3, 6276291), (7, 2689839), (9, 2092097), (21, 896613), (31, 607383), (63, 298871), (93, 202461), (217, 86769), (279, 67487), (311, 60543), (651, 28923), (933, 20181), (961, 19593), (1953, 9641), (2177, 8649), (2799, 6727), (2883, 6531)]