20597115

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1049}}^1$

素因数の和:1092

約数の個数: 64

約数和(自身を含む): 43545600

約数和(自身を除く): 22948485

約数列:

[1, 3, 5, 7, 11, 15, 17, 21, 33, 35, 51, 55, 77, 85, 105, 119, 165, 187, 231, 255, 357, 385, 561, 595, 935, 1049, 1155, 1309, 1785, 2805, 3147, 3927, 5245, 6545, 7343, 11539, 15735, 17833, 19635, 22029, 34617, 36715, 53499, 57695, 80773, 89165, 110145, 124831, 173085, 196163, 242319, 267495, 374493, 403865, 588489, 624155, 980815, 1211595, 1373141, 1872465, 2942445, 4119423, 6865705, 20597115]

約数ペア:

[(1, 20597115), (3, 6865705), (5, 4119423), (7, 2942445), (11, 1872465), (15, 1373141), (17, 1211595), (21, 980815), (33, 624155), (35, 588489), (51, 403865), (55, 374493), (77, 267495), (85, 242319), (105, 196163), (119, 173085), (165, 124831), (187, 110145), (231, 89165), (255, 80773), (357, 57695), (385, 53499), (561, 36715), (595, 34617), (935, 22029), (1049, 19635), (1155, 17833), (1309, 15735), (1785, 11539), (2805, 7343), (3147, 6545), (3927, 5245)]