20964816

素因数分解:

$2^4\times 3^2\times {\mathrm{145589}}^1$

素因数の和:145603

約数の個数: 30

約数和(自身を含む): 58672770

約数和(自身を除く): 37707954

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 145589, 291178, 436767, 582356, 873534, 1164712, 1310301, 1747068, 2329424, 2620602, 3494136, 5241204, 6988272, 10482408, 20964816]

約数ペア:

[(1, 20964816), (2, 10482408), (3, 6988272), (4, 5241204), (6, 3494136), (8, 2620602), (9, 2329424), (12, 1747068), (16, 1310301), (18, 1164712), (24, 873534), (36, 582356), (48, 436767), (72, 291178), (144, 145589)]