209217818

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{331}}^1$

素因数の和:542

約数の個数: 32

約数和(自身を含む): 329158080

約数和(自身を除く): 119940262

約数列:

[1, 2, 53, 67, 89, 106, 134, 178, 331, 662, 3551, 4717, 5963, 7102, 9434, 11926, 17543, 22177, 29459, 35086, 44354, 58918, 316039, 632078, 1175381, 1561327, 1973753, 2350762, 3122654, 3947506, 104608909, 209217818]

約数ペア:

[(1, 209217818), (2, 104608909), (53, 3947506), (67, 3122654), (89, 2350762), (106, 1973753), (134, 1561327), (178, 1175381), (331, 632078), (662, 316039), (3551, 58918), (4717, 44354), (5963, 35086), (7102, 29459), (9434, 22177), (11926, 17543)]