21008177568

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{10420723}}^1$

素因数の和:10420746

約数の個数: 72

約数和(自身を含む): 68276583648

約数和(自身を除く): 47268406080

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 56, 63, 72, 84, 96, 112, 126, 144, 168, 224, 252, 288, 336, 504, 672, 1008, 2016, 10420723, 20841446, 31262169, 41682892, 62524338, 72945061, 83365784, 93786507, 125048676, 145890122, 166731568, 187573014, 218835183, 250097352, 291780244, 333463136, 375146028, 437670366, 500194704, 583560488, 656505549, 750292056, 875340732, 1000389408, 1167120976, 1313011098, 1500584112, 1750681464, 2334241952, 2626022196, 3001168224, 3501362928, 5252044392, 7002725856, 10504088784, 21008177568]

約数ペア:

[(1, 21008177568), (2, 10504088784), (3, 7002725856), (4, 5252044392), (6, 3501362928), (7, 3001168224), (8, 2626022196), (9, 2334241952), (12, 1750681464), (14, 1500584112), (16, 1313011098), (18, 1167120976), (21, 1000389408), (24, 875340732), (28, 750292056), (32, 656505549), (36, 583560488), (42, 500194704), (48, 437670366), (56, 375146028), (63, 333463136), (72, 291780244), (84, 250097352), (96, 218835183), (112, 187573014), (126, 166731568), (144, 145890122), (168, 125048676), (224, 93786507), (252, 83365784), (288, 72945061), (336, 62524338), (504, 41682892), (672, 31262169), (1008, 20841446), (2016, 10420723)]