21821296

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1$

素因数の和:278

約数の個数: 80

約数和(自身を含む): 51853824

約数和(自身を除く): 30032528

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 43, 46, 56, 86, 92, 112, 161, 172, 184, 197, 301, 322, 344, 368, 394, 602, 644, 688, 788, 989, 1204, 1288, 1379, 1576, 1978, 2408, 2576, 2758, 3152, 3956, 4531, 4816, 5516, 6923, 7912, 8471, 9062, 11032, 13846, 15824, 16942, 18124, 22064, 27692, 31717, 33884, 36248, 55384, 59297, 63434, 67768, 72496, 110768, 118594, 126868, 135536, 194833, 237188, 253736, 389666, 474376, 507472, 779332, 948752, 1363831, 1558664, 2727662, 3117328, 5455324, 10910648, 21821296]

約数ペア:

[(1, 21821296), (2, 10910648), (4, 5455324), (7, 3117328), (8, 2727662), (14, 1558664), (16, 1363831), (23, 948752), (28, 779332), (43, 507472), (46, 474376), (56, 389666), (86, 253736), (92, 237188), (112, 194833), (161, 135536), (172, 126868), (184, 118594), (197, 110768), (301, 72496), (322, 67768), (344, 63434), (368, 59297), (394, 55384), (602, 36248), (644, 33884), (688, 31717), (788, 27692), (989, 22064), (1204, 18124), (1288, 16942), (1379, 15824), (1576, 13846), (1978, 11032), (2408, 9062), (2576, 8471), (2758, 7912), (3152, 6923), (3956, 5516), (4531, 4816)]