21805696

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{911}}^1$

素因数の和:953

約数の個数: 64

約数和(自身を含む): 50232960

約数和(自身を除く): 28427264

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 32, 34, 44, 64, 68, 88, 128, 136, 176, 187, 272, 352, 374, 544, 704, 748, 911, 1088, 1408, 1496, 1822, 2176, 2992, 3644, 5984, 7288, 10021, 11968, 14576, 15487, 20042, 23936, 29152, 30974, 40084, 58304, 61948, 80168, 116608, 123896, 160336, 170357, 247792, 320672, 340714, 495584, 641344, 681428, 991168, 1282688, 1362856, 1982336, 2725712, 5451424, 10902848, 21805696]

約数ペア:

[(1, 21805696), (2, 10902848), (4, 5451424), (8, 2725712), (11, 1982336), (16, 1362856), (17, 1282688), (22, 991168), (32, 681428), (34, 641344), (44, 495584), (64, 340714), (68, 320672), (88, 247792), (128, 170357), (136, 160336), (176, 123896), (187, 116608), (272, 80168), (352, 61948), (374, 58304), (544, 40084), (704, 30974), (748, 29152), (911, 23936), (1088, 20042), (1408, 15487), (1496, 14576), (1822, 11968), (2176, 10021), (2992, 7288), (3644, 5984)]