21477296

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:154

約数の個数: 80

約数和(自身を含む): 47139840

約数和(自身を除く): 25662544

約数列:

[1, 2, 4, 8, 16, 19, 31, 38, 43, 53, 62, 76, 86, 106, 124, 152, 172, 212, 248, 304, 344, 424, 496, 589, 688, 817, 848, 1007, 1178, 1333, 1634, 1643, 2014, 2279, 2356, 2666, 3268, 3286, 4028, 4558, 4712, 5332, 6536, 6572, 8056, 9116, 9424, 10664, 13072, 13144, 16112, 18232, 21328, 25327, 26288, 31217, 36464, 43301, 50654, 62434, 70649, 86602, 101308, 124868, 141298, 173204, 202616, 249736, 282596, 346408, 405232, 499472, 565192, 692816, 1130384, 1342331, 2684662, 5369324, 10738648, 21477296]

約数ペア:

[(1, 21477296), (2, 10738648), (4, 5369324), (8, 2684662), (16, 1342331), (19, 1130384), (31, 692816), (38, 565192), (43, 499472), (53, 405232), (62, 346408), (76, 282596), (86, 249736), (106, 202616), (124, 173204), (152, 141298), (172, 124868), (212, 101308), (248, 86602), (304, 70649), (344, 62434), (424, 50654), (496, 43301), (589, 36464), (688, 31217), (817, 26288), (848, 25327), (1007, 21328), (1178, 18232), (1333, 16112), (1634, 13144), (1643, 13072), (2014, 10664), (2279, 9424), (2356, 9116), (2666, 8056), (3268, 6572), (3286, 6536), (4028, 5332), (4558, 4712)]