21000901278

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{4201861}}^1$

素因数の和:4201897

約数の個数: 48

約数和(自身を含む): 51733324944

約数和(自身を除く): 30732423666

約数列:

[1, 2, 3, 6, 7, 14, 17, 21, 34, 42, 49, 51, 98, 102, 119, 147, 238, 294, 357, 714, 833, 1666, 2499, 4998, 4201861, 8403722, 12605583, 25211166, 29413027, 58826054, 71431637, 88239081, 142863274, 176478162, 205891189, 214294911, 411782378, 428589822, 500021459, 617673567, 1000042918, 1235347134, 1500064377, 3000128754, 3500150213, 7000300426, 10500450639, 21000901278]

約数ペア:

[(1, 21000901278), (2, 10500450639), (3, 7000300426), (6, 3500150213), (7, 3000128754), (14, 1500064377), (17, 1235347134), (21, 1000042918), (34, 617673567), (42, 500021459), (49, 428589822), (51, 411782378), (98, 214294911), (102, 205891189), (119, 176478162), (147, 142863274), (238, 88239081), (294, 71431637), (357, 58826054), (714, 29413027), (833, 25211166), (1666, 12605583), (2499, 8403722), (4998, 4201861)]