20357928

素因数分解:

$2^3\times 3^2\times {\mathrm{433}}^1\times {\mathrm{653}}^1$

素因数の和:1098

約数の個数: 48

約数和(自身を含む): 55348020

約数和(自身を除く): 34990092

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 433, 653, 866, 1299, 1306, 1732, 1959, 2598, 2612, 3464, 3897, 3918, 5196, 5224, 5877, 7794, 7836, 10392, 11754, 15588, 15672, 23508, 31176, 47016, 282749, 565498, 848247, 1130996, 1696494, 2261992, 2544741, 3392988, 5089482, 6785976, 10178964, 20357928]

約数ペア:

[(1, 20357928), (2, 10178964), (3, 6785976), (4, 5089482), (6, 3392988), (8, 2544741), (9, 2261992), (12, 1696494), (18, 1130996), (24, 848247), (36, 565498), (72, 282749), (433, 47016), (653, 31176), (866, 23508), (1299, 15672), (1306, 15588), (1732, 11754), (1959, 10392), (2598, 7836), (2612, 7794), (3464, 5877), (3897, 5224), (3918, 5196)]