21321570

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{431}}^1$

素因数の和:555

約数の個数: 64

約数和(自身を含む): 54867456

約数和(自身を除く): 33545886

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 97, 102, 170, 194, 255, 291, 431, 485, 510, 582, 862, 970, 1293, 1455, 1649, 2155, 2586, 2910, 3298, 4310, 4947, 6465, 7327, 8245, 9894, 12930, 14654, 16490, 21981, 24735, 36635, 41807, 43962, 49470, 73270, 83614, 109905, 125421, 209035, 219810, 250842, 418070, 627105, 710719, 1254210, 1421438, 2132157, 3553595, 4264314, 7107190, 10660785, 21321570]

約数ペア:

[(1, 21321570), (2, 10660785), (3, 7107190), (5, 4264314), (6, 3553595), (10, 2132157), (15, 1421438), (17, 1254210), (30, 710719), (34, 627105), (51, 418070), (85, 250842), (97, 219810), (102, 209035), (170, 125421), (194, 109905), (255, 83614), (291, 73270), (431, 49470), (485, 43962), (510, 41807), (582, 36635), (862, 24735), (970, 21981), (1293, 16490), (1455, 14654), (1649, 12930), (2155, 9894), (2586, 8245), (2910, 7327), (3298, 6465), (4310, 4947)]