21730863

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 37428480

約数和(自身を除く): 15697617

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 89, 147, 151, 231, 267, 453, 539, 623, 979, 1057, 1617, 1661, 1869, 2937, 3171, 4361, 4983, 6853, 7399, 11627, 13083, 13439, 20559, 22197, 34881, 40317, 47971, 81389, 94073, 143913, 147829, 244167, 282219, 443487, 658511, 1034803, 1975533, 3104409, 7243621, 21730863]

約数ペア:

[(1, 21730863), (3, 7243621), (7, 3104409), (11, 1975533), (21, 1034803), (33, 658511), (49, 443487), (77, 282219), (89, 244167), (147, 147829), (151, 143913), (231, 94073), (267, 81389), (453, 47971), (539, 40317), (623, 34881), (979, 22197), (1057, 20559), (1617, 13439), (1661, 13083), (1869, 11627), (2937, 7399), (3171, 6853), (4361, 4983)]