17920872

素因数分解:

$2^3\times 3^3\times {\mathrm{163}}^1\times {\mathrm{509}}^1$

素因数の和:687

約数の個数: 64

約数和(自身を含む): 50184000

約数和(自身を除く): 32263128

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 163, 216, 326, 489, 509, 652, 978, 1018, 1304, 1467, 1527, 1956, 2036, 2934, 3054, 3912, 4072, 4401, 4581, 5868, 6108, 8802, 9162, 11736, 12216, 13743, 17604, 18324, 27486, 35208, 36648, 54972, 82967, 109944, 165934, 248901, 331868, 497802, 663736, 746703, 995604, 1493406, 1991208, 2240109, 2986812, 4480218, 5973624, 8960436, 17920872]

約数ペア:

[(1, 17920872), (2, 8960436), (3, 5973624), (4, 4480218), (6, 2986812), (8, 2240109), (9, 1991208), (12, 1493406), (18, 995604), (24, 746703), (27, 663736), (36, 497802), (54, 331868), (72, 248901), (108, 165934), (163, 109944), (216, 82967), (326, 54972), (489, 36648), (509, 35208), (652, 27486), (978, 18324), (1018, 17604), (1304, 13743), (1467, 12216), (1527, 11736), (1956, 9162), (2036, 8802), (2934, 6108), (3054, 5868), (3912, 4581), (4072, 4401)]