21408352

素因数分解:

$2^5\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3083}}^1$

素因数の和:3131

約数の個数: 48

約数和(自身を含む): 49738752

約数和(自身を除く): 28330400

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 112, 124, 217, 224, 248, 434, 496, 868, 992, 1736, 3083, 3472, 6166, 6944, 12332, 21581, 24664, 43162, 49328, 86324, 95573, 98656, 172648, 191146, 345296, 382292, 669011, 690592, 764584, 1338022, 1529168, 2676044, 3058336, 5352088, 10704176, 21408352]

約数ペア:

[(1, 21408352), (2, 10704176), (4, 5352088), (7, 3058336), (8, 2676044), (14, 1529168), (16, 1338022), (28, 764584), (31, 690592), (32, 669011), (56, 382292), (62, 345296), (112, 191146), (124, 172648), (217, 98656), (224, 95573), (248, 86324), (434, 49328), (496, 43162), (868, 24664), (992, 21581), (1736, 12332), (3083, 6944), (3472, 6166)]