21691140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{3727}}^1$

素因数の和:3836

約数の個数: 48

約数和(自身を含む): 61377792

約数和(自身を除く): 39686652

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, 3727, 5820, 7454, 11181, 14908, 18635, 22362, 37270, 44724, 55905, 74540, 111810, 223620, 361519, 723038, 1084557, 1446076, 1807595, 2169114, 3615190, 4338228, 5422785, 7230380, 10845570, 21691140]

約数ペア:

[(1, 21691140), (2, 10845570), (3, 7230380), (4, 5422785), (5, 4338228), (6, 3615190), (10, 2169114), (12, 1807595), (15, 1446076), (20, 1084557), (30, 723038), (60, 361519), (97, 223620), (194, 111810), (291, 74540), (388, 55905), (485, 44724), (582, 37270), (970, 22362), (1164, 18635), (1455, 14908), (1940, 11181), (2910, 7454), (3727, 5820)]