20091038

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{331}}^1$

素因数の和:464

約数の個数: 32

約数和(自身を含む): 34421760

約数和(自身を除く): 14330722

約数列:

[1, 2, 11, 22, 31, 62, 89, 178, 331, 341, 662, 682, 979, 1958, 2759, 3641, 5518, 7282, 10261, 20522, 29459, 30349, 58918, 60698, 112871, 225742, 324049, 648098, 913229, 1826458, 10045519, 20091038]

約数ペア:

[(1, 20091038), (2, 10045519), (11, 1826458), (22, 913229), (31, 648098), (62, 324049), (89, 225742), (178, 112871), (331, 60698), (341, 58918), (662, 30349), (682, 29459), (979, 20522), (1958, 10261), (2759, 7282), (3641, 5518)]