21751664

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{1693}}^1$

素因数の和:1785

約数の個数: 40

約数和(自身を含む): 46632432

約数和(自身を除く): 24880768

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 73, 88, 146, 176, 292, 584, 803, 1168, 1606, 1693, 3212, 3386, 6424, 6772, 12848, 13544, 18623, 27088, 37246, 74492, 123589, 148984, 247178, 297968, 494356, 988712, 1359479, 1977424, 2718958, 5437916, 10875832, 21751664]

約数ペア:

[(1, 21751664), (2, 10875832), (4, 5437916), (8, 2718958), (11, 1977424), (16, 1359479), (22, 988712), (44, 494356), (73, 297968), (88, 247178), (146, 148984), (176, 123589), (292, 74492), (584, 37246), (803, 27088), (1168, 18623), (1606, 13544), (1693, 12848), (3212, 6772), (3386, 6424)]