28708953

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{181}}^1$

素因数の和:294

約数の個数: 48

約数和(自身を含む): 48799296

約数和(自身を除く): 20090343

約数列:

[1, 3, 7, 13, 21, 39, 49, 83, 91, 147, 181, 249, 273, 543, 581, 637, 1079, 1267, 1743, 1911, 2353, 3237, 3801, 4067, 7059, 7553, 8869, 12201, 15023, 16471, 22659, 26607, 45069, 49413, 52871, 105161, 115297, 158613, 195299, 315483, 345891, 585897, 736127, 1367093, 2208381, 4101279, 9569651, 28708953]

約数ペア:

[(1, 28708953), (3, 9569651), (7, 4101279), (13, 2208381), (21, 1367093), (39, 736127), (49, 585897), (83, 345891), (91, 315483), (147, 195299), (181, 158613), (249, 115297), (273, 105161), (543, 52871), (581, 49413), (637, 45069), (1079, 26607), (1267, 22659), (1743, 16471), (1911, 15023), (2353, 12201), (3237, 8869), (3801, 7553), (4067, 7059)]