19764608

素因数分解:

$2^7\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{293}}^1$

素因数の和:355

約数の個数: 64

約数和(自身を含む): 43182720

約数和(自身を除く): 23418112

約数列:

[1, 2, 4, 8, 16, 17, 31, 32, 34, 62, 64, 68, 124, 128, 136, 248, 272, 293, 496, 527, 544, 586, 992, 1054, 1088, 1172, 1984, 2108, 2176, 2344, 3968, 4216, 4688, 4981, 8432, 9083, 9376, 9962, 16864, 18166, 18752, 19924, 33728, 36332, 37504, 39848, 67456, 72664, 79696, 145328, 154411, 159392, 290656, 308822, 318784, 581312, 617644, 637568, 1162624, 1235288, 2470576, 4941152, 9882304, 19764608]

約数ペア:

[(1, 19764608), (2, 9882304), (4, 4941152), (8, 2470576), (16, 1235288), (17, 1162624), (31, 637568), (32, 617644), (34, 581312), (62, 318784), (64, 308822), (68, 290656), (124, 159392), (128, 154411), (136, 145328), (248, 79696), (272, 72664), (293, 67456), (496, 39848), (527, 37504), (544, 36332), (586, 33728), (992, 19924), (1054, 18752), (1088, 18166), (1172, 16864), (1984, 9962), (2108, 9376), (2176, 9083), (2344, 8432), (3968, 4981), (4216, 4688)]