21558292

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{211}}^1$

素因数の和:352

約数の個数: 48

約数和(自身を含む): 44876160

約数和(自身を除く): 23317868

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 89, 164, 178, 211, 287, 356, 422, 574, 623, 844, 1148, 1246, 1477, 2492, 2954, 3649, 5908, 7298, 8651, 14596, 17302, 18779, 25543, 34604, 37558, 51086, 60557, 75116, 102172, 121114, 131453, 242228, 262906, 525812, 769939, 1539878, 3079756, 5389573, 10779146, 21558292]

約数ペア:

[(1, 21558292), (2, 10779146), (4, 5389573), (7, 3079756), (14, 1539878), (28, 769939), (41, 525812), (82, 262906), (89, 242228), (164, 131453), (178, 121114), (211, 102172), (287, 75116), (356, 60557), (422, 51086), (574, 37558), (623, 34604), (844, 25543), (1148, 18779), (1246, 17302), (1477, 14596), (2492, 8651), (2954, 7298), (3649, 5908)]