21831460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{22277}}^1$

素因数の和:22300

約数の個数: 36

約数和(自身を含む): 53333532

約数和(自身を除く): 31502072

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 22277, 44554, 89108, 111385, 155939, 222770, 311878, 445540, 623756, 779695, 1091573, 1559390, 2183146, 3118780, 4366292, 5457865, 10915730, 21831460]

約数ペア:

[(1, 21831460), (2, 10915730), (4, 5457865), (5, 4366292), (7, 3118780), (10, 2183146), (14, 1559390), (20, 1091573), (28, 779695), (35, 623756), (49, 445540), (70, 311878), (98, 222770), (140, 155939), (196, 111385), (245, 89108), (490, 44554), (980, 22277)]