21957796

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{617}}^1$

素因数の和:700

約数の個数: 48

約数和(自身を含む): 46513152

約数和(自身を除く): 24555356

約数列:

[1, 2, 4, 7, 14, 28, 31, 41, 62, 82, 124, 164, 217, 287, 434, 574, 617, 868, 1148, 1234, 1271, 2468, 2542, 4319, 5084, 8638, 8897, 17276, 17794, 19127, 25297, 35588, 38254, 50594, 76508, 101188, 133889, 177079, 267778, 354158, 535556, 708316, 784207, 1568414, 3136828, 5489449, 10978898, 21957796]

約数ペア:

[(1, 21957796), (2, 10978898), (4, 5489449), (7, 3136828), (14, 1568414), (28, 784207), (31, 708316), (41, 535556), (62, 354158), (82, 267778), (124, 177079), (164, 133889), (217, 101188), (287, 76508), (434, 50594), (574, 38254), (617, 35588), (868, 25297), (1148, 19127), (1234, 17794), (1271, 17276), (2468, 8897), (2542, 8638), (4319, 5084)]