21235312

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{587}}^1$

素因数の和:638

約数の個数: 80

約数和(自身を含む): 52496640

約数和(自身を除く): 31261328

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 19, 28, 34, 38, 56, 68, 76, 112, 119, 133, 136, 152, 238, 266, 272, 304, 323, 476, 532, 587, 646, 952, 1064, 1174, 1292, 1904, 2128, 2261, 2348, 2584, 4109, 4522, 4696, 5168, 8218, 9044, 9392, 9979, 11153, 16436, 18088, 19958, 22306, 32872, 36176, 39916, 44612, 65744, 69853, 78071, 79832, 89224, 139706, 156142, 159664, 178448, 189601, 279412, 312284, 379202, 558824, 624568, 758404, 1117648, 1249136, 1327207, 1516808, 2654414, 3033616, 5308828, 10617656, 21235312]

約数ペア:

[(1, 21235312), (2, 10617656), (4, 5308828), (7, 3033616), (8, 2654414), (14, 1516808), (16, 1327207), (17, 1249136), (19, 1117648), (28, 758404), (34, 624568), (38, 558824), (56, 379202), (68, 312284), (76, 279412), (112, 189601), (119, 178448), (133, 159664), (136, 156142), (152, 139706), (238, 89224), (266, 79832), (272, 78071), (304, 69853), (323, 65744), (476, 44612), (532, 39916), (587, 36176), (646, 32872), (952, 22306), (1064, 19958), (1174, 18088), (1292, 16436), (1904, 11153), (2128, 9979), (2261, 9392), (2348, 9044), (2584, 8218), (4109, 5168), (4522, 4696)]