19389747

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{191}}^1$

素因数の和:363

約数の個数: 32

約数和(自身を含む): 29675520

約数和(自身を除く): 10285773

約数列:

[1, 3, 13, 19, 39, 57, 137, 191, 247, 411, 573, 741, 1781, 2483, 2603, 3629, 5343, 7449, 7809, 10887, 26167, 33839, 47177, 78501, 101517, 141531, 340171, 497173, 1020513, 1491519, 6463249, 19389747]

約数ペア:

[(1, 19389747), (3, 6463249), (13, 1491519), (19, 1020513), (39, 497173), (57, 340171), (137, 141531), (191, 101517), (247, 78501), (411, 47177), (573, 33839), (741, 26167), (1781, 10887), (2483, 7809), (2603, 7449), (3629, 5343)]