19827704

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{2297}}^1$

素因数の和:2399

約数の個数: 32

約数和(自身を含む): 40536720

約数和(自身を除く): 20709016

約数列:

[1, 2, 4, 8, 13, 26, 52, 83, 104, 166, 332, 664, 1079, 2158, 2297, 4316, 4594, 8632, 9188, 18376, 29861, 59722, 119444, 190651, 238888, 381302, 762604, 1525208, 2478463, 4956926, 9913852, 19827704]

約数ペア:

[(1, 19827704), (2, 9913852), (4, 4956926), (8, 2478463), (13, 1525208), (26, 762604), (52, 381302), (83, 238888), (104, 190651), (166, 119444), (332, 59722), (664, 29861), (1079, 18376), (2158, 9188), (2297, 8632), (4316, 4594)]