19506608

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{809}}^1$

素因数の和:965

約数の個数: 40

約数和(自身を含む): 41582160

約数和(自身を除く): 22075552

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 137, 176, 274, 548, 809, 1096, 1507, 1618, 2192, 3014, 3236, 6028, 6472, 8899, 12056, 12944, 17798, 24112, 35596, 71192, 110833, 142384, 221666, 443332, 886664, 1219163, 1773328, 2438326, 4876652, 9753304, 19506608]

約数ペア:

[(1, 19506608), (2, 9753304), (4, 4876652), (8, 2438326), (11, 1773328), (16, 1219163), (22, 886664), (44, 443332), (88, 221666), (137, 142384), (176, 110833), (274, 71192), (548, 35596), (809, 24112), (1096, 17798), (1507, 12944), (1618, 12056), (2192, 8899), (3014, 6472), (3236, 6028)]