21907270

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1237}}^1$

素因数の和:1285

約数の個数: 64

約数和(自身を含む): 51342336

約数和(自身を除く): 29435066

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 23, 35, 46, 55, 70, 77, 110, 115, 154, 161, 230, 253, 322, 385, 506, 770, 805, 1237, 1265, 1610, 1771, 2474, 2530, 3542, 6185, 8659, 8855, 12370, 13607, 17318, 17710, 27214, 28451, 43295, 56902, 68035, 86590, 95249, 136070, 142255, 190498, 199157, 284510, 312961, 398314, 476245, 625922, 952490, 995785, 1564805, 1991570, 2190727, 3129610, 4381454, 10953635, 21907270]

約数ペア:

[(1, 21907270), (2, 10953635), (5, 4381454), (7, 3129610), (10, 2190727), (11, 1991570), (14, 1564805), (22, 995785), (23, 952490), (35, 625922), (46, 476245), (55, 398314), (70, 312961), (77, 284510), (110, 199157), (115, 190498), (154, 142255), (161, 136070), (230, 95249), (253, 86590), (322, 68035), (385, 56902), (506, 43295), (770, 28451), (805, 27214), (1237, 17710), (1265, 17318), (1610, 13607), (1771, 12370), (2474, 8855), (2530, 8659), (3542, 6185)]