30906939

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1091}}^1$

素因数の和:1191

約数の個数: 32

約数和(自身を含む): 50319360

約数和(自身を除く): 19412421

約数列:

[1, 3, 7, 19, 21, 57, 71, 133, 213, 399, 497, 1091, 1349, 1491, 3273, 4047, 7637, 9443, 20729, 22911, 28329, 62187, 77461, 145103, 232383, 435309, 542227, 1471759, 1626681, 4415277, 10302313, 30906939]

約数ペア:

[(1, 30906939), (3, 10302313), (7, 4415277), (19, 1626681), (21, 1471759), (57, 542227), (71, 435309), (133, 232383), (213, 145103), (399, 77461), (497, 62187), (1091, 28329), (1349, 22911), (1491, 20729), (3273, 9443), (4047, 7637)]