21754096

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{223}}^1$

素因数の和:318

約数の個数: 80

約数和(自身を含む): 52885504

約数和(自身を除く): 31131408

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 67, 91, 104, 112, 134, 182, 208, 223, 268, 364, 446, 469, 536, 728, 871, 892, 938, 1072, 1456, 1561, 1742, 1784, 1876, 2899, 3122, 3484, 3568, 3752, 5798, 6097, 6244, 6968, 7504, 11596, 12194, 12488, 13936, 14941, 20293, 23192, 24388, 24976, 29882, 40586, 46384, 48776, 59764, 81172, 97552, 104587, 119528, 162344, 194233, 209174, 239056, 324688, 388466, 418348, 776932, 836696, 1359631, 1553864, 1673392, 2719262, 3107728, 5438524, 10877048, 21754096]

約数ペア:

[(1, 21754096), (2, 10877048), (4, 5438524), (7, 3107728), (8, 2719262), (13, 1673392), (14, 1553864), (16, 1359631), (26, 836696), (28, 776932), (52, 418348), (56, 388466), (67, 324688), (91, 239056), (104, 209174), (112, 194233), (134, 162344), (182, 119528), (208, 104587), (223, 97552), (268, 81172), (364, 59764), (446, 48776), (469, 46384), (536, 40586), (728, 29882), (871, 24976), (892, 24388), (938, 23192), (1072, 20293), (1456, 14941), (1561, 13936), (1742, 12488), (1784, 12194), (1876, 11596), (2899, 7504), (3122, 6968), (3484, 6244), (3568, 6097), (3752, 5798)]