18748756

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{167}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 37933056

約数和(自身を除く): 19184300

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 127, 167, 221, 254, 334, 442, 508, 668, 884, 1651, 2159, 2171, 2839, 3302, 4318, 4342, 5678, 6604, 8636, 8684, 11356, 21209, 28067, 36907, 42418, 56134, 73814, 84836, 112268, 147628, 275717, 360553, 551434, 721106, 1102868, 1442212, 4687189, 9374378, 18748756]

約数ペア:

[(1, 18748756), (2, 9374378), (4, 4687189), (13, 1442212), (17, 1102868), (26, 721106), (34, 551434), (52, 360553), (68, 275717), (127, 147628), (167, 112268), (221, 84836), (254, 73814), (334, 56134), (442, 42418), (508, 36907), (668, 28067), (884, 21209), (1651, 11356), (2159, 8684), (2171, 8636), (2839, 6604), (3302, 5678), (4318, 4342)]