21891678

素因数分解:

$2^1\times 3^1\times {\mathrm{73}}^1\times {\mathrm{151}}^1\times {\mathrm{331}}^1$

素因数の和:560

約数の個数: 32

約数和(自身を含む): 44812032

約数和(自身を除く): 22920354

約数列:

[1, 2, 3, 6, 73, 146, 151, 219, 302, 331, 438, 453, 662, 906, 993, 1986, 11023, 22046, 24163, 33069, 48326, 49981, 66138, 72489, 99962, 144978, 149943, 299886, 3648613, 7297226, 10945839, 21891678]

約数ペア:

[(1, 21891678), (2, 10945839), (3, 7297226), (6, 3648613), (73, 299886), (146, 149943), (151, 144978), (219, 99962), (302, 72489), (331, 66138), (438, 49981), (453, 48326), (662, 33069), (906, 24163), (993, 22046), (1986, 11023)]