21140496

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{491}}^1$

素因数の和:541

約数の個数: 120

約数和(自身を含む): 66620736

約数和(自身を除く): 45480240

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 23, 24, 26, 36, 39, 46, 48, 52, 69, 72, 78, 92, 104, 117, 138, 144, 156, 184, 207, 208, 234, 276, 299, 312, 368, 414, 468, 491, 552, 598, 624, 828, 897, 936, 982, 1104, 1196, 1473, 1656, 1794, 1872, 1964, 2392, 2691, 2946, 3312, 3588, 3928, 4419, 4784, 5382, 5892, 6383, 7176, 7856, 8838, 10764, 11293, 11784, 12766, 14352, 17676, 19149, 21528, 22586, 23568, 25532, 33879, 35352, 38298, 43056, 45172, 51064, 57447, 67758, 70704, 76596, 90344, 101637, 102128, 114894, 135516, 146809, 153192, 180688, 203274, 229788, 271032, 293618, 306384, 406548, 440427, 459576, 542064, 587236, 813096, 880854, 919152, 1174472, 1321281, 1626192, 1761708, 2348944, 2642562, 3523416, 5285124, 7046832, 10570248, 21140496]

約数ペア:

[(1, 21140496), (2, 10570248), (3, 7046832), (4, 5285124), (6, 3523416), (8, 2642562), (9, 2348944), (12, 1761708), (13, 1626192), (16, 1321281), (18, 1174472), (23, 919152), (24, 880854), (26, 813096), (36, 587236), (39, 542064), (46, 459576), (48, 440427), (52, 406548), (69, 306384), (72, 293618), (78, 271032), (92, 229788), (104, 203274), (117, 180688), (138, 153192), (144, 146809), (156, 135516), (184, 114894), (207, 102128), (208, 101637), (234, 90344), (276, 76596), (299, 70704), (312, 67758), (368, 57447), (414, 51064), (468, 45172), (491, 43056), (552, 38298), (598, 35352), (624, 33879), (828, 25532), (897, 23568), (936, 22586), (982, 21528), (1104, 19149), (1196, 17676), (1473, 14352), (1656, 12766), (1794, 11784), (1872, 11293), (1964, 10764), (2392, 8838), (2691, 7856), (2946, 7176), (3312, 6383), (3588, 5892), (3928, 5382), (4419, 4784)]