21286496

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1$

素因数の和:244

約数の個数: 96

約数和(自身を含む): 53561088

約数和(自身を除く): 32274592

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 53, 56, 77, 88, 106, 112, 154, 163, 176, 212, 224, 308, 326, 352, 371, 424, 583, 616, 652, 742, 848, 1141, 1166, 1232, 1304, 1484, 1696, 1793, 2282, 2332, 2464, 2608, 2968, 3586, 4081, 4564, 4664, 5216, 5936, 7172, 8162, 8639, 9128, 9328, 11872, 12551, 14344, 16324, 17278, 18256, 18656, 25102, 28688, 32648, 34556, 36512, 50204, 57376, 60473, 65296, 69112, 95029, 100408, 120946, 130592, 138224, 190058, 200816, 241892, 276448, 380116, 401632, 483784, 665203, 760232, 967568, 1330406, 1520464, 1935136, 2660812, 3040928, 5321624, 10643248, 21286496]

約数ペア:

[(1, 21286496), (2, 10643248), (4, 5321624), (7, 3040928), (8, 2660812), (11, 1935136), (14, 1520464), (16, 1330406), (22, 967568), (28, 760232), (32, 665203), (44, 483784), (53, 401632), (56, 380116), (77, 276448), (88, 241892), (106, 200816), (112, 190058), (154, 138224), (163, 130592), (176, 120946), (212, 100408), (224, 95029), (308, 69112), (326, 65296), (352, 60473), (371, 57376), (424, 50204), (583, 36512), (616, 34556), (652, 32648), (742, 28688), (848, 25102), (1141, 18656), (1166, 18256), (1232, 17278), (1304, 16324), (1484, 14344), (1696, 12551), (1793, 11872), (2282, 9328), (2332, 9128), (2464, 8639), (2608, 8162), (2968, 7172), (3586, 5936), (4081, 5216), (4564, 4664)]