21084564112

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{198193}}^1$

素因数の和:198371

約数の個数: 40

約数和(自身を含む): 41902175480

約数和(自身を除く): 20817611368

約数列:

[1, 2, 4, 8, 16, 61, 109, 122, 218, 244, 436, 488, 872, 976, 1744, 6649, 13298, 26596, 53192, 106384, 198193, 396386, 792772, 1585544, 3171088, 12089773, 21603037, 24179546, 43206074, 48359092, 86412148, 96718184, 172824296, 193436368, 345648592, 1317785257, 2635570514, 5271141028, 10542282056, 21084564112]

約数ペア:

[(1, 21084564112), (2, 10542282056), (4, 5271141028), (8, 2635570514), (16, 1317785257), (61, 345648592), (109, 193436368), (122, 172824296), (218, 96718184), (244, 86412148), (436, 48359092), (488, 43206074), (872, 24179546), (976, 21603037), (1744, 12089773), (6649, 3171088), (13298, 1585544), (26596, 792772), (53192, 396386), (106384, 198193)]