20999304

素因数分解:

$2^3\times 3^3\times {\mathrm{191}}^1\times {\mathrm{509}}^1$

素因数の和:715

約数の個数: 64

約数和(自身を含む): 58752000

約数和(自身を除く): 37752696

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 191, 216, 382, 509, 573, 764, 1018, 1146, 1527, 1528, 1719, 2036, 2292, 3054, 3438, 4072, 4581, 4584, 5157, 6108, 6876, 9162, 10314, 12216, 13743, 13752, 18324, 20628, 27486, 36648, 41256, 54972, 97219, 109944, 194438, 291657, 388876, 583314, 777752, 874971, 1166628, 1749942, 2333256, 2624913, 3499884, 5249826, 6999768, 10499652, 20999304]

約数ペア:

[(1, 20999304), (2, 10499652), (3, 6999768), (4, 5249826), (6, 3499884), (8, 2624913), (9, 2333256), (12, 1749942), (18, 1166628), (24, 874971), (27, 777752), (36, 583314), (54, 388876), (72, 291657), (108, 194438), (191, 109944), (216, 97219), (382, 54972), (509, 41256), (573, 36648), (764, 27486), (1018, 20628), (1146, 18324), (1527, 13752), (1528, 13743), (1719, 12216), (2036, 10314), (2292, 9162), (3054, 6876), (3438, 6108), (4072, 5157), (4581, 4584)]