20421333

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{389}}^1$

素因数の和:721

約数の個数: 24

約数和(自身を含む): 31231200

約数和(自身を除く): 10809867

約数列:

[1, 3, 9, 19, 57, 171, 307, 389, 921, 1167, 2763, 3501, 5833, 7391, 17499, 22173, 52497, 66519, 119423, 358269, 1074807, 2269037, 6807111, 20421333]

約数ペア:

[(1, 20421333), (3, 6807111), (9, 2269037), (19, 1074807), (57, 358269), (171, 119423), (307, 66519), (389, 52497), (921, 22173), (1167, 17499), (2763, 7391), (3501, 5833)]