21913180

素因数分解:

$2^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{6121}}^1$

素因数の和:6309

約数の個数: 24

約数和(自身を含む): 46282320

約数和(自身を除く): 24369140

約数列:

[1, 2, 4, 5, 10, 20, 179, 358, 716, 895, 1790, 3580, 6121, 12242, 24484, 30605, 61210, 122420, 1095659, 2191318, 4382636, 5478295, 10956590, 21913180]

約数ペア:

[(1, 21913180), (2, 10956590), (4, 5478295), (5, 4382636), (10, 2191318), (20, 1095659), (179, 122420), (358, 61210), (716, 30605), (895, 24484), (1790, 12242), (3580, 6121)]