20565756

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{19699}}^1$

素因数の和:19738

約数の個数: 36

約数和(自身を含む): 53781000

約数和(自身を除く): 33215244

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 87, 116, 174, 261, 348, 522, 1044, 19699, 39398, 59097, 78796, 118194, 177291, 236388, 354582, 571271, 709164, 1142542, 1713813, 2285084, 3427626, 5141439, 6855252, 10282878, 20565756]

約数ペア:

[(1, 20565756), (2, 10282878), (3, 6855252), (4, 5141439), (6, 3427626), (9, 2285084), (12, 1713813), (18, 1142542), (29, 709164), (36, 571271), (58, 354582), (87, 236388), (116, 177291), (174, 118194), (261, 78796), (348, 59097), (522, 39398), (1044, 19699)]