21425273264

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{269}}^1\times {\mathrm{443}}^1\times {\mathrm{661}}^1$

素因数の和:1398

約数の個数: 80

約数和(自身を含む): 44283192480

約数和(自身を除く): 22857919216

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 269, 272, 443, 538, 661, 886, 1076, 1322, 1772, 2152, 2644, 3544, 4304, 4573, 5288, 7088, 7531, 9146, 10576, 11237, 15062, 18292, 22474, 30124, 36584, 44948, 60248, 73168, 89896, 119167, 120496, 177809, 179792, 238334, 292823, 355618, 476668, 585646, 711236, 953336, 1171292, 1422472, 1906672, 2025839, 2342584, 2844944, 3022753, 4051678, 4685168, 4977991, 6045506, 8103356, 9955982, 12091012, 16206712, 19911964, 24182024, 32413424, 39823928, 48364048, 78769387, 79647856, 157538774, 315077548, 630155096, 1260310192, 1339079579, 2678159158, 5356318316, 10712636632, 21425273264]

約数ペア:

[(1, 21425273264), (2, 10712636632), (4, 5356318316), (8, 2678159158), (16, 1339079579), (17, 1260310192), (34, 630155096), (68, 315077548), (136, 157538774), (269, 79647856), (272, 78769387), (443, 48364048), (538, 39823928), (661, 32413424), (886, 24182024), (1076, 19911964), (1322, 16206712), (1772, 12091012), (2152, 9955982), (2644, 8103356), (3544, 6045506), (4304, 4977991), (4573, 4685168), (5288, 4051678), (7088, 3022753), (7531, 2844944), (9146, 2342584), (10576, 2025839), (11237, 1906672), (15062, 1422472), (18292, 1171292), (22474, 953336), (30124, 711236), (36584, 585646), (44948, 476668), (60248, 355618), (73168, 292823), (89896, 238334), (119167, 179792), (120496, 177809)]