19807996

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{3371}}^1$

素因数の和:3501

約数の個数: 24

約数和(自身を含む): 37671984

約数和(自身を除く): 17863988

約数列:

[1, 2, 4, 13, 26, 52, 113, 226, 452, 1469, 2938, 3371, 5876, 6742, 13484, 43823, 87646, 175292, 380923, 761846, 1523692, 4951999, 9903998, 19807996]

約数ペア:

[(1, 19807996), (2, 9903998), (4, 4951999), (13, 1523692), (26, 761846), (52, 380923), (113, 175292), (226, 87646), (452, 43823), (1469, 13484), (2938, 6742), (3371, 5876)]