21948904

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{811}}^1$

素因数の和:1033

約数の個数: 32

約数和(自身を含む): 43848000

約数和(自身を除く): 21899096

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 199, 398, 796, 811, 1592, 1622, 3244, 3383, 6488, 6766, 13532, 13787, 27064, 27574, 55148, 110296, 161389, 322778, 645556, 1291112, 2743613, 5487226, 10974452, 21948904]

約数ペア:

[(1, 21948904), (2, 10974452), (4, 5487226), (8, 2743613), (17, 1291112), (34, 645556), (68, 322778), (136, 161389), (199, 110296), (398, 55148), (796, 27574), (811, 27064), (1592, 13787), (1622, 13532), (3244, 6766), (3383, 6488)]