21783084

素因数分解:

$2^2\times 3^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{691}}^1$

素因数の和:806

約数の個数: 48

約数和(自身を含む): 53012736

約数和(自身を除く): 31229652

約数列:

[1, 2, 3, 4, 6, 12, 37, 71, 74, 111, 142, 148, 213, 222, 284, 426, 444, 691, 852, 1382, 2073, 2627, 2764, 4146, 5254, 7881, 8292, 10508, 15762, 25567, 31524, 49061, 51134, 76701, 98122, 102268, 147183, 153402, 196244, 294366, 306804, 588732, 1815257, 3630514, 5445771, 7261028, 10891542, 21783084]

約数ペア:

[(1, 21783084), (2, 10891542), (3, 7261028), (4, 5445771), (6, 3630514), (12, 1815257), (37, 588732), (71, 306804), (74, 294366), (111, 196244), (142, 153402), (148, 147183), (213, 102268), (222, 98122), (284, 76701), (426, 51134), (444, 49061), (691, 31524), (852, 25567), (1382, 15762), (2073, 10508), (2627, 8292), (2764, 7881), (4146, 5254)]