21754832

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{661}}^1$

素因数の和:708

約数の個数: 60

約数和(自身を含む): 49129668

約数和(自身を除く): 27374836

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 34, 44, 68, 88, 121, 136, 176, 187, 242, 272, 374, 484, 661, 748, 968, 1322, 1496, 1936, 2057, 2644, 2992, 4114, 5288, 7271, 8228, 10576, 11237, 14542, 16456, 22474, 29084, 32912, 44948, 58168, 79981, 89896, 116336, 123607, 159962, 179792, 247214, 319924, 494428, 639848, 988856, 1279696, 1359677, 1977712, 2719354, 5438708, 10877416, 21754832]

約数ペア:

[(1, 21754832), (2, 10877416), (4, 5438708), (8, 2719354), (11, 1977712), (16, 1359677), (17, 1279696), (22, 988856), (34, 639848), (44, 494428), (68, 319924), (88, 247214), (121, 179792), (136, 159962), (176, 123607), (187, 116336), (242, 89896), (272, 79981), (374, 58168), (484, 44948), (661, 32912), (748, 29084), (968, 22474), (1322, 16456), (1496, 14542), (1936, 11237), (2057, 10576), (2644, 8228), (2992, 7271), (4114, 5288)]