20933307

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{379}}^1$

素因数の和:440

約数の個数: 36

約数和(自身を含む): 33878520

約数和(自身を除く): 12945213

約数列:

[1, 3, 9, 17, 19, 51, 57, 153, 171, 323, 361, 379, 969, 1083, 1137, 2907, 3249, 3411, 6137, 6443, 7201, 18411, 19329, 21603, 55233, 57987, 64809, 122417, 136819, 367251, 410457, 1101753, 1231371, 2325923, 6977769, 20933307]

約数ペア:

[(1, 20933307), (3, 6977769), (9, 2325923), (17, 1231371), (19, 1101753), (51, 410457), (57, 367251), (153, 136819), (171, 122417), (323, 64809), (361, 57987), (379, 55233), (969, 21603), (1083, 19329), (1137, 18411), (2907, 7201), (3249, 6443), (3411, 6137)]