21493783927

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{683}}^1\times {\mathrm{829}}^1$

素因数の和:1576

約数の個数: 64

約数和(自身を含む): 29430604800

約数和(自身を除く): 7936820873

約数列:

[1, 7, 11, 17, 29, 77, 119, 187, 203, 319, 493, 683, 829, 1309, 2233, 3451, 4781, 5423, 5803, 7513, 9119, 11611, 14093, 19807, 24041, 37961, 52591, 63833, 81277, 98651, 127721, 138649, 155023, 168287, 217877, 264451, 336719, 408697, 566207, 894047, 1085161, 1525139, 1851157, 2357033, 2860879, 3703909, 3963449, 4495667, 6228277, 9625519, 16420003, 25927363, 31469669, 43597939, 67378633, 105880709, 114940021, 180620033, 279140051, 741164963, 1264340231, 1953980357, 3070540561, 21493783927]

約数ペア:

[(1, 21493783927), (7, 3070540561), (11, 1953980357), (17, 1264340231), (29, 741164963), (77, 279140051), (119, 180620033), (187, 114940021), (203, 105880709), (319, 67378633), (493, 43597939), (683, 31469669), (829, 25927363), (1309, 16420003), (2233, 9625519), (3451, 6228277), (4781, 4495667), (5423, 3963449), (5803, 3703909), (7513, 2860879), (9119, 2357033), (11611, 1851157), (14093, 1525139), (19807, 1085161), (24041, 894047), (37961, 566207), (52591, 408697), (63833, 336719), (81277, 264451), (98651, 217877), (127721, 168287), (138649, 155023)]