1389406473

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{565489}}^1$

素因数の和:565518

約数の個数: 32

約数和(自身を含む): 2533395200

約数和(自身を除く): 1143988727

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 351, 819, 2457, 565489, 1696467, 3958423, 5089401, 7351357, 11875269, 15268203, 22054071, 35625807, 51459499, 66162213, 106877421, 154378497, 198486639, 463135491, 1389406473]

約数ペア:

[(1, 1389406473), (3, 463135491), (7, 198486639), (9, 154378497), (13, 106877421), (21, 66162213), (27, 51459499), (39, 35625807), (63, 22054071), (91, 15268203), (117, 11875269), (189, 7351357), (273, 5089401), (351, 3958423), (819, 1696467), (2457, 565489)]