21101164

素因数分解:

$2^2\times 7^2\times {\mathrm{199}}^1\times {\mathrm{541}}^1$

素因数の和:758

約数の個数: 36

約数和(自身を含む): 43251600

約数和(自身を除く): 22150436

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 199, 398, 541, 796, 1082, 1393, 2164, 2786, 3787, 5572, 7574, 9751, 15148, 19502, 26509, 39004, 53018, 106036, 107659, 215318, 430636, 753613, 1507226, 3014452, 5275291, 10550582, 21101164]

約数ペア:

[(1, 21101164), (2, 10550582), (4, 5275291), (7, 3014452), (14, 1507226), (28, 753613), (49, 430636), (98, 215318), (196, 107659), (199, 106036), (398, 53018), (541, 39004), (796, 26509), (1082, 19502), (1393, 15148), (2164, 9751), (2786, 7574), (3787, 5572)]