19991682

素因数分解:

$2^1\times 3^2\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{263}}^1$

素因数の和:415

約数の個数: 48

約数和(自身を含む): 44972928

約数和(自身を除く): 24981246

約数列:

[1, 2, 3, 6, 9, 18, 41, 82, 103, 123, 206, 246, 263, 309, 369, 526, 618, 738, 789, 927, 1578, 1854, 2367, 4223, 4734, 8446, 10783, 12669, 21566, 25338, 27089, 32349, 38007, 54178, 64698, 76014, 81267, 97047, 162534, 194094, 243801, 487602, 1110649, 2221298, 3331947, 6663894, 9995841, 19991682]

約数ペア:

[(1, 19991682), (2, 9995841), (3, 6663894), (6, 3331947), (9, 2221298), (18, 1110649), (41, 487602), (82, 243801), (103, 194094), (123, 162534), (206, 97047), (246, 81267), (263, 76014), (309, 64698), (369, 54178), (526, 38007), (618, 32349), (738, 27089), (789, 25338), (927, 21566), (1578, 12669), (1854, 10783), (2367, 8446), (4223, 4734)]