21574770

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1447}}^1$

素因数の和:1535

約数の個数: 64

約数和(自身を含む): 60051456

約数和(自身を除く): 38476686

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 71, 105, 142, 210, 213, 355, 426, 497, 710, 994, 1065, 1447, 1491, 2130, 2485, 2894, 2982, 4341, 4970, 7235, 7455, 8682, 10129, 14470, 14910, 20258, 21705, 30387, 43410, 50645, 60774, 101290, 102737, 151935, 205474, 303870, 308211, 513685, 616422, 719159, 1027370, 1438318, 1541055, 2157477, 3082110, 3595795, 4314954, 7191590, 10787385, 21574770]

約数ペア:

[(1, 21574770), (2, 10787385), (3, 7191590), (5, 4314954), (6, 3595795), (7, 3082110), (10, 2157477), (14, 1541055), (15, 1438318), (21, 1027370), (30, 719159), (35, 616422), (42, 513685), (70, 308211), (71, 303870), (105, 205474), (142, 151935), (210, 102737), (213, 101290), (355, 60774), (426, 50645), (497, 43410), (710, 30387), (994, 21705), (1065, 20258), (1447, 14910), (1491, 14470), (2130, 10129), (2485, 8682), (2894, 7455), (2982, 7235), (4341, 4970)]