20192459

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{41}}^1$

素因数の和:120

約数の個数: 36

約数和(自身を含む): 26477640

約数和(自身を除く): 6285181

約数列:

[1, 7, 19, 23, 41, 49, 133, 161, 287, 437, 529, 779, 931, 943, 1127, 2009, 3059, 3703, 5453, 6601, 10051, 17917, 21413, 21689, 25921, 38171, 46207, 70357, 125419, 151823, 412091, 492499, 877933, 1062761, 2884637, 20192459]

約数ペア:

[(1, 20192459), (7, 2884637), (19, 1062761), (23, 877933), (41, 492499), (49, 412091), (133, 151823), (161, 125419), (287, 70357), (437, 46207), (529, 38171), (779, 25921), (931, 21689), (943, 21413), (1127, 17917), (2009, 10051), (3059, 6601), (3703, 5453)]