21491314

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{409}}^1$

素因数の和:514

約数の個数: 32

約数和(自身を含む): 36368640

約数和(自身を除く): 14877326

約数列:

[1, 2, 13, 26, 43, 47, 86, 94, 409, 559, 611, 818, 1118, 1222, 2021, 4042, 5317, 10634, 17587, 19223, 26273, 35174, 38446, 52546, 228631, 249899, 457262, 499798, 826589, 1653178, 10745657, 21491314]

約数ペア:

[(1, 21491314), (2, 10745657), (13, 1653178), (26, 826589), (43, 499798), (47, 457262), (86, 249899), (94, 228631), (409, 52546), (559, 38446), (611, 35174), (818, 26273), (1118, 19223), (1222, 17587), (2021, 10634), (4042, 5317)]