19784105

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{617}}^1$

素因数の和:697

約数の個数: 24

約数和(自身を含む): 26630856

約数和(自身を除く): 6846751

約数列:

[1, 5, 11, 53, 55, 121, 265, 583, 605, 617, 2915, 3085, 6413, 6787, 32065, 32701, 33935, 74657, 163505, 359711, 373285, 1798555, 3956821, 19784105]

約数ペア:

[(1, 19784105), (5, 3956821), (11, 1798555), (53, 373285), (55, 359711), (121, 163505), (265, 74657), (583, 33935), (605, 32701), (617, 32065), (2915, 6787), (3085, 6413)]