20217470868

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{631717}}^1$

素因数の和:631861

約数の個数: 72

約数和(自身を含む): 58866010112

約数和(自身を除く): 38648539244

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 127, 252, 254, 381, 508, 762, 889, 1143, 1524, 1778, 2286, 2667, 3556, 4572, 5334, 8001, 10668, 16002, 32004, 631717, 1263434, 1895151, 2526868, 3790302, 4422019, 5685453, 7580604, 8844038, 11370906, 13266057, 17688076, 22741812, 26532114, 39798171, 53064228, 79596342, 80228059, 159192684, 160456118, 240684177, 320912236, 481368354, 561596413, 722052531, 962736708, 1123192826, 1444105062, 1684789239, 2246385652, 2888210124, 3369578478, 5054367717, 6739156956, 10108735434, 20217470868]

約数ペア:

[(1, 20217470868), (2, 10108735434), (3, 6739156956), (4, 5054367717), (6, 3369578478), (7, 2888210124), (9, 2246385652), (12, 1684789239), (14, 1444105062), (18, 1123192826), (21, 962736708), (28, 722052531), (36, 561596413), (42, 481368354), (63, 320912236), (84, 240684177), (126, 160456118), (127, 159192684), (252, 80228059), (254, 79596342), (381, 53064228), (508, 39798171), (762, 26532114), (889, 22741812), (1143, 17688076), (1524, 13266057), (1778, 11370906), (2286, 8844038), (2667, 7580604), (3556, 5685453), (4572, 4422019), (5334, 3790302), (8001, 2526868), (10668, 1895151), (16002, 1263434), (32004, 631717)]