21994388619

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{822743}}^1$

素因数の和:822839

約数の個数: 32

約数和(自身を含む): 35805818880

約数和(自身を除く): 13811430261

約数列:

[1, 3, 7, 19, 21, 57, 67, 133, 201, 399, 469, 1273, 1407, 3819, 8911, 26733, 822743, 2468229, 5759201, 15632117, 17277603, 46896351, 55123781, 109424819, 165371343, 328274457, 385866467, 1047351839, 1157599401, 3142055517, 7331462873, 21994388619]

約数ペア:

[(1, 21994388619), (3, 7331462873), (7, 3142055517), (19, 1157599401), (21, 1047351839), (57, 385866467), (67, 328274457), (133, 165371343), (201, 109424819), (399, 55123781), (469, 46896351), (1273, 17277603), (1407, 15632117), (3819, 5759201), (8911, 2468229), (26733, 822743)]