18973292

素因数分解:

$2^2\times {\mathrm{13}}^3\times {\mathrm{17}}^1\times {\mathrm{127}}^1$

素因数の和:187

約数の個数: 48

約数和(自身を含む): 38384640

約数和(自身を除く): 19411348

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 127, 169, 221, 254, 338, 442, 508, 676, 884, 1651, 2159, 2197, 2873, 3302, 4318, 4394, 5746, 6604, 8636, 8788, 11492, 21463, 28067, 37349, 42926, 56134, 74698, 85852, 112268, 149396, 279019, 364871, 558038, 729742, 1116076, 1459484, 4743323, 9486646, 18973292]

約数ペア:

[(1, 18973292), (2, 9486646), (4, 4743323), (13, 1459484), (17, 1116076), (26, 729742), (34, 558038), (52, 364871), (68, 279019), (127, 149396), (169, 112268), (221, 85852), (254, 74698), (338, 56134), (442, 42926), (508, 37349), (676, 28067), (884, 21463), (1651, 11492), (2159, 8788), (2197, 8636), (2873, 6604), (3302, 5746), (4318, 4394)]