19811072

素因数分解:

$2^8\times {\mathrm{19}}^1\times {\mathrm{4073}}^1$

素因数の和:4108

約数の個数: 36

約数和(自身を含む): 41636280

約数和(自身を除く): 21825208

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 256, 304, 608, 1216, 2432, 4073, 4864, 8146, 16292, 32584, 65168, 77387, 130336, 154774, 260672, 309548, 521344, 619096, 1042688, 1238192, 2476384, 4952768, 9905536, 19811072]

約数ペア:

[(1, 19811072), (2, 9905536), (4, 4952768), (8, 2476384), (16, 1238192), (19, 1042688), (32, 619096), (38, 521344), (64, 309548), (76, 260672), (128, 154774), (152, 130336), (256, 77387), (304, 65168), (608, 32584), (1216, 16292), (2432, 8146), (4073, 4864)]