18967554

素因数分解:

$2^1\times 3^3\times {\mathrm{197}}^1\times {\mathrm{1783}}^1$

素因数の和:1991

約数の個数: 32

約数和(自身を含む): 42387840

約数和(自身を除く): 23420286

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 197, 394, 591, 1182, 1773, 1783, 3546, 3566, 5319, 5349, 10638, 10698, 16047, 32094, 48141, 96282, 351251, 702502, 1053753, 2107506, 3161259, 6322518, 9483777, 18967554]

約数ペア:

[(1, 18967554), (2, 9483777), (3, 6322518), (6, 3161259), (9, 2107506), (18, 1053753), (27, 702502), (54, 351251), (197, 96282), (394, 48141), (591, 32094), (1182, 16047), (1773, 10698), (1783, 10638), (3546, 5349), (3566, 5319)]