21713025

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 37944000

約数和(自身を除く): 16230975

約数列:

[1, 3, 5, 15, 25, 29, 67, 75, 87, 145, 149, 201, 335, 435, 447, 725, 745, 1005, 1675, 1943, 2175, 2235, 3725, 4321, 5025, 5829, 9715, 9983, 11175, 12963, 21605, 29145, 29949, 48575, 49915, 64815, 108025, 145725, 149745, 249575, 289507, 324075, 748725, 868521, 1447535, 4342605, 7237675, 21713025]

約数ペア:

[(1, 21713025), (3, 7237675), (5, 4342605), (15, 1447535), (25, 868521), (29, 748725), (67, 324075), (75, 289507), (87, 249575), (145, 149745), (149, 145725), (201, 108025), (335, 64815), (435, 49915), (447, 48575), (725, 29949), (745, 29145), (1005, 21605), (1675, 12963), (1943, 11175), (2175, 9983), (2235, 9715), (3725, 5829), (4321, 5025)]