20815886

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{16339}}^1$

素因数の和:16368

約数の個数: 24

約数和(自身を含む): 39117960

約数和(自身を除く): 18302074

約数列:

[1, 2, 7, 13, 14, 26, 49, 91, 98, 182, 637, 1274, 16339, 32678, 114373, 212407, 228746, 424814, 800611, 1486849, 1601222, 2973698, 10407943, 20815886]

約数ペア:

[(1, 20815886), (2, 10407943), (7, 2973698), (13, 1601222), (14, 1486849), (26, 800611), (49, 424814), (91, 228746), (98, 212407), (182, 114373), (637, 32678), (1274, 16339)]