21295380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{3659}}^1$

素因数の和:3768

約数の個数: 48

約数和(自身を含む): 60258240

約数和(自身を除く): 38962860

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 97, 194, 291, 388, 485, 582, 970, 1164, 1455, 1940, 2910, 3659, 5820, 7318, 10977, 14636, 18295, 21954, 36590, 43908, 54885, 73180, 109770, 219540, 354923, 709846, 1064769, 1419692, 1774615, 2129538, 3549230, 4259076, 5323845, 7098460, 10647690, 21295380]

約数ペア:

[(1, 21295380), (2, 10647690), (3, 7098460), (4, 5323845), (5, 4259076), (6, 3549230), (10, 2129538), (12, 1774615), (15, 1419692), (20, 1064769), (30, 709846), (60, 354923), (97, 219540), (194, 109770), (291, 73180), (388, 54885), (485, 43908), (582, 36590), (970, 21954), (1164, 18295), (1455, 14636), (1940, 10977), (2910, 7318), (3659, 5820)]