20813208

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3511}}^1$

素因数の和:3552

約数の個数: 64

約数和(自身を含む): 59001600

約数和(自身を除く): 38188392

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 19, 24, 26, 38, 39, 52, 57, 76, 78, 104, 114, 152, 156, 228, 247, 312, 456, 494, 741, 988, 1482, 1976, 2964, 3511, 5928, 7022, 10533, 14044, 21066, 28088, 42132, 45643, 66709, 84264, 91286, 133418, 136929, 182572, 200127, 266836, 273858, 365144, 400254, 533672, 547716, 800508, 867217, 1095432, 1601016, 1734434, 2601651, 3468868, 5203302, 6937736, 10406604, 20813208]

約数ペア:

[(1, 20813208), (2, 10406604), (3, 6937736), (4, 5203302), (6, 3468868), (8, 2601651), (12, 1734434), (13, 1601016), (19, 1095432), (24, 867217), (26, 800508), (38, 547716), (39, 533672), (52, 400254), (57, 365144), (76, 273858), (78, 266836), (104, 200127), (114, 182572), (152, 136929), (156, 133418), (228, 91286), (247, 84264), (312, 66709), (456, 45643), (494, 42132), (741, 28088), (988, 21066), (1482, 14044), (1976, 10533), (2964, 7022), (3511, 5928)]