19860016

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{5939}}^1$

素因数の和:5977

約数の個数: 40

約数和(自身を含む): 44193600

約数和(自身を除く): 24333584

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 76, 88, 152, 176, 209, 304, 418, 836, 1672, 3344, 5939, 11878, 23756, 47512, 65329, 95024, 112841, 130658, 225682, 261316, 451364, 522632, 902728, 1045264, 1241251, 1805456, 2482502, 4965004, 9930008, 19860016]

約数ペア:

[(1, 19860016), (2, 9930008), (4, 4965004), (8, 2482502), (11, 1805456), (16, 1241251), (19, 1045264), (22, 902728), (38, 522632), (44, 451364), (76, 261316), (88, 225682), (152, 130658), (176, 112841), (209, 95024), (304, 65329), (418, 47512), (836, 23756), (1672, 11878), (3344, 5939)]