21980672

素因数分解:

$2^9\times 7^1\times {\mathrm{6133}}^1$

素因数の和:6158

約数の個数: 40

約数和(自身を含む): 50200656

約数和(自身を除く): 28219984

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1792, 3584, 6133, 12266, 24532, 42931, 49064, 85862, 98128, 171724, 196256, 343448, 392512, 686896, 785024, 1373792, 1570048, 2747584, 3140096, 5495168, 10990336, 21980672]

約数ペア:

[(1, 21980672), (2, 10990336), (4, 5495168), (7, 3140096), (8, 2747584), (14, 1570048), (16, 1373792), (28, 785024), (32, 686896), (56, 392512), (64, 343448), (112, 196256), (128, 171724), (224, 98128), (256, 85862), (448, 49064), (512, 42931), (896, 24532), (1792, 12266), (3584, 6133)]