81639918

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{503}}^1$

素因数の和:709

約数の個数: 48

約数和(自身を含む): 181149696

約数和(自身を除く): 99509778

約数列:

[1, 2, 3, 6, 9, 18, 71, 127, 142, 213, 254, 381, 426, 503, 639, 762, 1006, 1143, 1278, 1509, 2286, 3018, 4527, 9017, 9054, 18034, 27051, 35713, 54102, 63881, 71426, 81153, 107139, 127762, 162306, 191643, 214278, 321417, 383286, 574929, 642834, 1149858, 4535551, 9071102, 13606653, 27213306, 40819959, 81639918]

約数ペア:

[(1, 81639918), (2, 40819959), (3, 27213306), (6, 13606653), (9, 9071102), (18, 4535551), (71, 1149858), (127, 642834), (142, 574929), (213, 383286), (254, 321417), (381, 214278), (426, 191643), (503, 162306), (639, 127762), (762, 107139), (1006, 81153), (1143, 71426), (1278, 63881), (1509, 54102), (2286, 35713), (3018, 27051), (4527, 18034), (9017, 9054)]