19782776

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{853}}^1$

素因数の和:1095

約数の個数: 32

約数和(自身を含む): 40172160

約数和(自身を除く): 20389384

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 223, 446, 853, 892, 1706, 1784, 2899, 3412, 5798, 6824, 11089, 11596, 22178, 23192, 44356, 88712, 190219, 380438, 760876, 1521752, 2472847, 4945694, 9891388, 19782776]

約数ペア:

[(1, 19782776), (2, 9891388), (4, 4945694), (8, 2472847), (13, 1521752), (26, 760876), (52, 380438), (104, 190219), (223, 88712), (446, 44356), (853, 23192), (892, 22178), (1706, 11596), (1784, 11089), (2899, 6824), (3412, 5798)]