81269727

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:236

約数の個数: 64

約数和(自身を含む): 141004800

約数和(自身を除く): 59735073

約数列:

[1, 3, 7, 11, 21, 33, 59, 67, 77, 89, 177, 201, 231, 267, 413, 469, 623, 649, 737, 979, 1239, 1407, 1869, 1947, 2211, 2937, 3953, 4543, 5159, 5251, 5963, 6853, 11859, 13629, 15477, 15753, 17889, 20559, 27671, 36757, 41741, 43483, 57761, 65593, 83013, 110271, 125223, 130449, 173283, 196779, 304381, 351817, 404327, 459151, 913143, 1055451, 1212981, 1377453, 2462719, 3869987, 7388157, 11609961, 27089909, 81269727]

約数ペア:

[(1, 81269727), (3, 27089909), (7, 11609961), (11, 7388157), (21, 3869987), (33, 2462719), (59, 1377453), (67, 1212981), (77, 1055451), (89, 913143), (177, 459151), (201, 404327), (231, 351817), (267, 304381), (413, 196779), (469, 173283), (623, 130449), (649, 125223), (737, 110271), (979, 83013), (1239, 65593), (1407, 57761), (1869, 43483), (1947, 41741), (2211, 36757), (2937, 27671), (3953, 20559), (4543, 17889), (5159, 15753), (5251, 15477), (5963, 13629), (6853, 11859)]