18950984

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{107}}^1\times {\mathrm{131}}^1$

素因数の和:270

約数の個数: 48

約数和(自身を含む): 39132720

約数和(自身を除く): 20181736

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 107, 131, 169, 214, 262, 338, 428, 524, 676, 856, 1048, 1352, 1391, 1703, 2782, 3406, 5564, 6812, 11128, 13624, 14017, 18083, 22139, 28034, 36166, 44278, 56068, 72332, 88556, 112136, 144664, 177112, 182221, 364442, 728884, 1457768, 2368873, 4737746, 9475492, 18950984]

約数ペア:

[(1, 18950984), (2, 9475492), (4, 4737746), (8, 2368873), (13, 1457768), (26, 728884), (52, 364442), (104, 182221), (107, 177112), (131, 144664), (169, 112136), (214, 88556), (262, 72332), (338, 56068), (428, 44278), (524, 36166), (676, 28034), (856, 22139), (1048, 18083), (1352, 14017), (1391, 13624), (1703, 11128), (2782, 6812), (3406, 5564)]