21054394

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{293}}^1$

素因数の和:406

約数の個数: 32

約数和(自身を含む): 34997760

約数和(自身を除く): 13943366

約数列:

[1, 2, 19, 31, 38, 61, 62, 122, 293, 586, 589, 1159, 1178, 1891, 2318, 3782, 5567, 9083, 11134, 17873, 18166, 35746, 35929, 71858, 172577, 339587, 345154, 554063, 679174, 1108126, 10527197, 21054394]

約数ペア:

[(1, 21054394), (2, 10527197), (19, 1108126), (31, 679174), (38, 554063), (61, 345154), (62, 339587), (122, 172577), (293, 71858), (586, 35929), (589, 35746), (1159, 18166), (1178, 17873), (1891, 11134), (2318, 9083), (3782, 5567)]