21693560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{77477}}^1$

素因数の和:77495

約数の個数: 32

約数和(自身を含む): 55784160

約数和(自身を除く): 34090600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 77477, 154954, 309908, 387385, 542339, 619816, 774770, 1084678, 1549540, 2169356, 2711695, 3099080, 4338712, 5423390, 10846780, 21693560]

約数ペア:

[(1, 21693560), (2, 10846780), (4, 5423390), (5, 4338712), (7, 3099080), (8, 2711695), (10, 2169356), (14, 1549540), (20, 1084678), (28, 774770), (35, 619816), (40, 542339), (56, 387385), (70, 309908), (140, 154954), (280, 77477)]