21529129928

素因数分解:

$2^3\times {\mathrm{79}}^1\times {\mathrm{193}}^1\times {\mathrm{176503}}^1$

素因数の和:176781

約数の個数: 32

約数和(自身を含む): 41090131200

約数和(自身を除く): 19561001272

約数列:

[1, 2, 4, 8, 79, 158, 193, 316, 386, 632, 772, 1544, 15247, 30494, 60988, 121976, 176503, 353006, 706012, 1412024, 13943737, 27887474, 34065079, 55774948, 68130158, 111549896, 136260316, 272520632, 2691141241, 5382282482, 10764564964, 21529129928]

約数ペア:

[(1, 21529129928), (2, 10764564964), (4, 5382282482), (8, 2691141241), (79, 272520632), (158, 136260316), (193, 111549896), (316, 68130158), (386, 55774948), (632, 34065079), (772, 27887474), (1544, 13943737), (15247, 1412024), (30494, 706012), (60988, 353006), (121976, 176503)]