20017382

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{599}}^1$

素因数の和:657

約数の個数: 48

約数和(自身を含む): 39398400

約数和(自身を除く): 19381018

約数列:

[1, 2, 7, 11, 14, 22, 31, 49, 62, 77, 98, 154, 217, 341, 434, 539, 599, 682, 1078, 1198, 1519, 2387, 3038, 4193, 4774, 6589, 8386, 13178, 16709, 18569, 29351, 33418, 37138, 46123, 58702, 92246, 129983, 204259, 259966, 322861, 408518, 645722, 909881, 1429813, 1819762, 2859626, 10008691, 20017382]

約数ペア:

[(1, 20017382), (2, 10008691), (7, 2859626), (11, 1819762), (14, 1429813), (22, 909881), (31, 645722), (49, 408518), (62, 322861), (77, 259966), (98, 204259), (154, 129983), (217, 92246), (341, 58702), (434, 46123), (539, 37138), (599, 33418), (682, 29351), (1078, 18569), (1198, 16709), (1519, 13178), (2387, 8386), (3038, 6589), (4193, 4774)]