21293216

素因数分解:

$2^5\times 7^1\times {\mathrm{23}}^1\times {\mathrm{4133}}^1$

素因数の和:4173

約数の個数: 48

約数和(自身を含む): 50004864

約数和(自身を除く): 28711648

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 32, 46, 56, 92, 112, 161, 184, 224, 322, 368, 644, 736, 1288, 2576, 4133, 5152, 8266, 16532, 28931, 33064, 57862, 66128, 95059, 115724, 132256, 190118, 231448, 380236, 462896, 665413, 760472, 925792, 1330826, 1520944, 2661652, 3041888, 5323304, 10646608, 21293216]

約数ペア:

[(1, 21293216), (2, 10646608), (4, 5323304), (7, 3041888), (8, 2661652), (14, 1520944), (16, 1330826), (23, 925792), (28, 760472), (32, 665413), (46, 462896), (56, 380236), (92, 231448), (112, 190118), (161, 132256), (184, 115724), (224, 95059), (322, 66128), (368, 57862), (644, 33064), (736, 28931), (1288, 16532), (2576, 8266), (4133, 5152)]