20673968

素因数分解:

$2^4\times 7^1\times {\mathrm{197}}^1\times {\mathrm{937}}^1$

素因数の和:1149

約数の個数: 40

約数和(自身を含む): 46059552

約数和(自身を除く): 25385584

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 197, 394, 788, 937, 1379, 1576, 1874, 2758, 3152, 3748, 5516, 6559, 7496, 11032, 13118, 14992, 22064, 26236, 52472, 104944, 184589, 369178, 738356, 1292123, 1476712, 2584246, 2953424, 5168492, 10336984, 20673968]

約数ペア:

[(1, 20673968), (2, 10336984), (4, 5168492), (7, 2953424), (8, 2584246), (14, 1476712), (16, 1292123), (28, 738356), (56, 369178), (112, 184589), (197, 104944), (394, 52472), (788, 26236), (937, 22064), (1379, 14992), (1576, 13118), (1874, 11032), (2758, 7496), (3152, 6559), (3748, 5516)]