21616826

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{359}}^1$

素因数の和:419

約数の個数: 64

約数和(自身を含む): 44789760

約数和(自身を除く): 23172934

約数列:

[1, 2, 7, 11, 14, 17, 22, 23, 34, 46, 77, 119, 154, 161, 187, 238, 253, 322, 359, 374, 391, 506, 718, 782, 1309, 1771, 2513, 2618, 2737, 3542, 3949, 4301, 5026, 5474, 6103, 7898, 8257, 8602, 12206, 16514, 27643, 30107, 42721, 55286, 57799, 60214, 67133, 85442, 90827, 115598, 134266, 140369, 181654, 280738, 469931, 635789, 939862, 982583, 1271578, 1544059, 1965166, 3088118, 10808413, 21616826]

約数ペア:

[(1, 21616826), (2, 10808413), (7, 3088118), (11, 1965166), (14, 1544059), (17, 1271578), (22, 982583), (23, 939862), (34, 635789), (46, 469931), (77, 280738), (119, 181654), (154, 140369), (161, 134266), (187, 115598), (238, 90827), (253, 85442), (322, 67133), (359, 60214), (374, 57799), (391, 55286), (506, 42721), (718, 30107), (782, 27643), (1309, 16514), (1771, 12206), (2513, 8602), (2618, 8257), (2737, 7898), (3542, 6103), (3949, 5474), (4301, 5026)]