21967968

素因数分解:

$2^5\times 3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{293}}^1$

素因数の和:388

約数の個数: 96

約数和(自身を含む): 64012032

約数和(自身を除く): 42044064

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 32, 33, 44, 48, 66, 71, 88, 96, 132, 142, 176, 213, 264, 284, 293, 352, 426, 528, 568, 586, 781, 852, 879, 1056, 1136, 1172, 1562, 1704, 1758, 2272, 2343, 2344, 3124, 3223, 3408, 3516, 4686, 4688, 6248, 6446, 6816, 7032, 9372, 9376, 9669, 12496, 12892, 14064, 18744, 19338, 20803, 24992, 25784, 28128, 37488, 38676, 41606, 51568, 62409, 74976, 77352, 83212, 103136, 124818, 154704, 166424, 228833, 249636, 309408, 332848, 457666, 499272, 665696, 686499, 915332, 998544, 1372998, 1830664, 1997088, 2745996, 3661328, 5491992, 7322656, 10983984, 21967968]

約数ペア:

[(1, 21967968), (2, 10983984), (3, 7322656), (4, 5491992), (6, 3661328), (8, 2745996), (11, 1997088), (12, 1830664), (16, 1372998), (22, 998544), (24, 915332), (32, 686499), (33, 665696), (44, 499272), (48, 457666), (66, 332848), (71, 309408), (88, 249636), (96, 228833), (132, 166424), (142, 154704), (176, 124818), (213, 103136), (264, 83212), (284, 77352), (293, 74976), (352, 62409), (426, 51568), (528, 41606), (568, 38676), (586, 37488), (781, 28128), (852, 25784), (879, 24992), (1056, 20803), (1136, 19338), (1172, 18744), (1562, 14064), (1704, 12892), (1758, 12496), (2272, 9669), (2343, 9376), (2344, 9372), (3124, 7032), (3223, 6816), (3408, 6446), (3516, 6248), (4686, 4688)]