19670768

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5563}}^1$

素因数の和:5601

約数の個数: 40

約数和(自身を含む): 43465968

約数和(自身を除く): 23795200

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 208, 221, 272, 442, 884, 1768, 3536, 5563, 11126, 22252, 44504, 72319, 89008, 94571, 144638, 189142, 289276, 378284, 578552, 756568, 1157104, 1229423, 1513136, 2458846, 4917692, 9835384, 19670768]

約数ペア:

[(1, 19670768), (2, 9835384), (4, 4917692), (8, 2458846), (13, 1513136), (16, 1229423), (17, 1157104), (26, 756568), (34, 578552), (52, 378284), (68, 289276), (104, 189142), (136, 144638), (208, 94571), (221, 89008), (272, 72319), (442, 44504), (884, 22252), (1768, 11126), (3536, 5563)]