20275437

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{197}}^1$

素因数の和:262

約数の個数: 48

約数和(自身を含む): 34784640

約数和(自身を除く): 14509203

約数列:

[1, 3, 7, 13, 21, 29, 39, 87, 91, 169, 197, 203, 273, 377, 507, 591, 609, 1131, 1183, 1379, 2561, 2639, 3549, 4137, 4901, 5713, 7683, 7917, 14703, 17139, 17927, 33293, 34307, 39991, 53781, 74269, 99879, 102921, 119973, 222807, 233051, 519883, 699153, 965497, 1559649, 2896491, 6758479, 20275437]

約数ペア:

[(1, 20275437), (3, 6758479), (7, 2896491), (13, 1559649), (21, 965497), (29, 699153), (39, 519883), (87, 233051), (91, 222807), (169, 119973), (197, 102921), (203, 99879), (273, 74269), (377, 53781), (507, 39991), (591, 34307), (609, 33293), (1131, 17927), (1183, 17139), (1379, 14703), (2561, 7917), (2639, 7683), (3549, 5713), (4137, 4901)]