19806848

素因数分解:

$2^7\times {\mathrm{271}}^1\times {\mathrm{571}}^1$

素因数の和:856

約数の個数: 32

約数和(自身を含む): 39673920

約数和(自身を除く): 19867072

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 271, 542, 571, 1084, 1142, 2168, 2284, 4336, 4568, 8672, 9136, 17344, 18272, 34688, 36544, 73088, 154741, 309482, 618964, 1237928, 2475856, 4951712, 9903424, 19806848]

約数ペア:

[(1, 19806848), (2, 9903424), (4, 4951712), (8, 2475856), (16, 1237928), (32, 618964), (64, 309482), (128, 154741), (271, 73088), (542, 36544), (571, 34688), (1084, 18272), (1142, 17344), (2168, 9136), (2284, 8672), (4336, 4568)]