20977632

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^2\times {\mathrm{431}}^1$

素因数の和:473

約数の個数: 108

約数和(自身を含む): 64746864

約数和(自身を除く): 43769232

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 72, 78, 96, 104, 117, 144, 156, 169, 208, 234, 288, 312, 338, 416, 431, 468, 507, 624, 676, 862, 936, 1014, 1248, 1293, 1352, 1521, 1724, 1872, 2028, 2586, 2704, 3042, 3448, 3744, 3879, 4056, 5172, 5408, 5603, 6084, 6896, 7758, 8112, 10344, 11206, 12168, 13792, 15516, 16224, 16809, 20688, 22412, 24336, 31032, 33618, 41376, 44824, 48672, 50427, 62064, 67236, 72839, 89648, 100854, 124128, 134472, 145678, 179296, 201708, 218517, 268944, 291356, 403416, 437034, 537888, 582712, 655551, 806832, 874068, 1165424, 1311102, 1613664, 1748136, 2330848, 2622204, 3496272, 5244408, 6992544, 10488816, 20977632]

約数ペア:

[(1, 20977632), (2, 10488816), (3, 6992544), (4, 5244408), (6, 3496272), (8, 2622204), (9, 2330848), (12, 1748136), (13, 1613664), (16, 1311102), (18, 1165424), (24, 874068), (26, 806832), (32, 655551), (36, 582712), (39, 537888), (48, 437034), (52, 403416), (72, 291356), (78, 268944), (96, 218517), (104, 201708), (117, 179296), (144, 145678), (156, 134472), (169, 124128), (208, 100854), (234, 89648), (288, 72839), (312, 67236), (338, 62064), (416, 50427), (431, 48672), (468, 44824), (507, 41376), (624, 33618), (676, 31032), (862, 24336), (936, 22412), (1014, 20688), (1248, 16809), (1293, 16224), (1352, 15516), (1521, 13792), (1724, 12168), (1872, 11206), (2028, 10344), (2586, 8112), (2704, 7758), (3042, 6896), (3448, 6084), (3744, 5603), (3879, 5408), (4056, 5172)]