21159216

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:243

約数の個数: 120

約数和(自身を含む): 64995840

約数和(自身を除く): 43836624

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 89, 104, 117, 127, 144, 156, 178, 208, 234, 254, 267, 312, 356, 381, 468, 508, 534, 624, 712, 762, 801, 936, 1016, 1068, 1143, 1157, 1424, 1524, 1602, 1651, 1872, 2032, 2136, 2286, 2314, 3048, 3204, 3302, 3471, 4272, 4572, 4628, 4953, 6096, 6408, 6604, 6942, 9144, 9256, 9906, 10413, 11303, 12816, 13208, 13884, 14859, 18288, 18512, 19812, 20826, 22606, 26416, 27768, 29718, 33909, 39624, 41652, 45212, 55536, 59436, 67818, 79248, 83304, 90424, 101727, 118872, 135636, 146939, 166608, 180848, 203454, 237744, 271272, 293878, 406908, 440817, 542544, 587756, 813816, 881634, 1175512, 1322451, 1627632, 1763268, 2351024, 2644902, 3526536, 5289804, 7053072, 10579608, 21159216]

約数ペア:

[(1, 21159216), (2, 10579608), (3, 7053072), (4, 5289804), (6, 3526536), (8, 2644902), (9, 2351024), (12, 1763268), (13, 1627632), (16, 1322451), (18, 1175512), (24, 881634), (26, 813816), (36, 587756), (39, 542544), (48, 440817), (52, 406908), (72, 293878), (78, 271272), (89, 237744), (104, 203454), (117, 180848), (127, 166608), (144, 146939), (156, 135636), (178, 118872), (208, 101727), (234, 90424), (254, 83304), (267, 79248), (312, 67818), (356, 59436), (381, 55536), (468, 45212), (508, 41652), (534, 39624), (624, 33909), (712, 29718), (762, 27768), (801, 26416), (936, 22606), (1016, 20826), (1068, 19812), (1143, 18512), (1157, 18288), (1424, 14859), (1524, 13884), (1602, 13208), (1651, 12816), (1872, 11303), (2032, 10413), (2136, 9906), (2286, 9256), (2314, 9144), (3048, 6942), (3204, 6604), (3302, 6408), (3471, 6096), (4272, 4953), (4572, 4628)]