31222989

素因数分解:

$3^4\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1039}}^1$

素因数の和:1111

約数の個数: 40

約数和(自身を含む): 54362880

約数和(自身を除く): 23139891

約数列:

[1, 3, 7, 9, 21, 27, 53, 63, 81, 159, 189, 371, 477, 567, 1039, 1113, 1431, 3117, 3339, 4293, 7273, 9351, 10017, 21819, 28053, 30051, 55067, 65457, 84159, 165201, 196371, 385469, 495603, 589113, 1156407, 1486809, 3469221, 4460427, 10407663, 31222989]

約数ペア:

[(1, 31222989), (3, 10407663), (7, 4460427), (9, 3469221), (21, 1486809), (27, 1156407), (53, 589113), (63, 495603), (81, 385469), (159, 196371), (189, 165201), (371, 84159), (477, 65457), (567, 55067), (1039, 30051), (1113, 28053), (1431, 21819), (3117, 10017), (3339, 9351), (4293, 7273)]