19715488

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{571}}^1$

素因数の和:677

約数の個数: 48

約数和(自身を含む): 42378336

約数和(自身を除く): 22662848

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 83, 104, 166, 208, 332, 416, 571, 664, 1079, 1142, 1328, 2158, 2284, 2656, 4316, 4568, 7423, 8632, 9136, 14846, 17264, 18272, 29692, 34528, 47393, 59384, 94786, 118768, 189572, 237536, 379144, 616109, 758288, 1232218, 1516576, 2464436, 4928872, 9857744, 19715488]

約数ペア:

[(1, 19715488), (2, 9857744), (4, 4928872), (8, 2464436), (13, 1516576), (16, 1232218), (26, 758288), (32, 616109), (52, 379144), (83, 237536), (104, 189572), (166, 118768), (208, 94786), (332, 59384), (416, 47393), (571, 34528), (664, 29692), (1079, 18272), (1142, 17264), (1328, 14846), (2158, 9136), (2284, 8632), (2656, 7423), (4316, 4568)]