21062720

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{9403}}^1$

素因数の和:9427

約数の個数: 56

約数和(自身を含む): 57326784

約数和(自身を除く): 36264064

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 448, 560, 1120, 2240, 9403, 18806, 37612, 47015, 65821, 75224, 94030, 131642, 150448, 188060, 263284, 300896, 329105, 376120, 526568, 601792, 658210, 752240, 1053136, 1316420, 1504480, 2106272, 2632840, 3008960, 4212544, 5265680, 10531360, 21062720]

約数ペア:

[(1, 21062720), (2, 10531360), (4, 5265680), (5, 4212544), (7, 3008960), (8, 2632840), (10, 2106272), (14, 1504480), (16, 1316420), (20, 1053136), (28, 752240), (32, 658210), (35, 601792), (40, 526568), (56, 376120), (64, 329105), (70, 300896), (80, 263284), (112, 188060), (140, 150448), (160, 131642), (224, 94030), (280, 75224), (320, 65821), (448, 47015), (560, 37612), (1120, 18806), (2240, 9403)]