19686736

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{2089}}^1$

素因数の和:2147

約数の個数: 40

約数和(自身を含む): 41465600

約数和(自身を除く): 21778864

約数列:

[1, 2, 4, 8, 16, 19, 31, 38, 62, 76, 124, 152, 248, 304, 496, 589, 1178, 2089, 2356, 4178, 4712, 8356, 9424, 16712, 33424, 39691, 64759, 79382, 129518, 158764, 259036, 317528, 518072, 635056, 1036144, 1230421, 2460842, 4921684, 9843368, 19686736]

約数ペア:

[(1, 19686736), (2, 9843368), (4, 4921684), (8, 2460842), (16, 1230421), (19, 1036144), (31, 635056), (38, 518072), (62, 317528), (76, 259036), (124, 158764), (152, 129518), (248, 79382), (304, 64759), (496, 39691), (589, 33424), (1178, 16712), (2089, 9424), (2356, 8356), (4178, 4712)]