20863998

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1663}}^1$

素因数の和:1729

約数の個数: 48

約数和(自身を含む): 49061376

約数和(自身を除く): 28197378

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 41, 51, 82, 102, 123, 153, 246, 306, 369, 697, 738, 1394, 1663, 2091, 3326, 4182, 4989, 6273, 9978, 12546, 14967, 28271, 29934, 56542, 68183, 84813, 136366, 169626, 204549, 254439, 409098, 508878, 613647, 1159111, 1227294, 2318222, 3477333, 6954666, 10431999, 20863998]

約数ペア:

[(1, 20863998), (2, 10431999), (3, 6954666), (6, 3477333), (9, 2318222), (17, 1227294), (18, 1159111), (34, 613647), (41, 508878), (51, 409098), (82, 254439), (102, 204549), (123, 169626), (153, 136366), (246, 84813), (306, 68183), (369, 56542), (697, 29934), (738, 28271), (1394, 14967), (1663, 12546), (2091, 9978), (3326, 6273), (4182, 4989)]