21871410

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{347}}^1$

素因数の和:559

約数の個数: 64

約数和(自身を含む): 57729024

約数和(自身を除く): 35857614

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 191, 330, 347, 382, 573, 694, 955, 1041, 1146, 1735, 1910, 2082, 2101, 2865, 3470, 3817, 4202, 5205, 5730, 6303, 7634, 10410, 10505, 11451, 12606, 19085, 21010, 22902, 31515, 38170, 57255, 63030, 66277, 114510, 132554, 198831, 331385, 397662, 662770, 729047, 994155, 1458094, 1988310, 2187141, 3645235, 4374282, 7290470, 10935705, 21871410]

約数ペア:

[(1, 21871410), (2, 10935705), (3, 7290470), (5, 4374282), (6, 3645235), (10, 2187141), (11, 1988310), (15, 1458094), (22, 994155), (30, 729047), (33, 662770), (55, 397662), (66, 331385), (110, 198831), (165, 132554), (191, 114510), (330, 66277), (347, 63030), (382, 57255), (573, 38170), (694, 31515), (955, 22902), (1041, 21010), (1146, 19085), (1735, 12606), (1910, 11451), (2082, 10505), (2101, 10410), (2865, 7634), (3470, 6303), (3817, 5730), (4202, 5205)]