20861778

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{5581}}^1$

素因数の和:5682

約数の個数: 32

約数和(自身を含む): 48228480

約数和(自身を除く): 27366702

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 89, 178, 267, 534, 623, 1246, 1869, 3738, 5581, 11162, 16743, 33486, 39067, 78134, 117201, 234402, 496709, 993418, 1490127, 2980254, 3476963, 6953926, 10430889, 20861778]

約数ペア:

[(1, 20861778), (2, 10430889), (3, 6953926), (6, 3476963), (7, 2980254), (14, 1490127), (21, 993418), (42, 496709), (89, 234402), (178, 117201), (267, 78134), (534, 39067), (623, 33486), (1246, 16743), (1869, 11162), (3738, 5581)]