18831592

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{4211}}^1$

素因数の和:4273

約数の個数: 32

約数和(自身を含む): 38918880

約数和(自身を除く): 20087288

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 344, 559, 1118, 2236, 4211, 4472, 8422, 16844, 33688, 54743, 109486, 181073, 218972, 362146, 437944, 724292, 1448584, 2353949, 4707898, 9415796, 18831592]

約数ペア:

[(1, 18831592), (2, 9415796), (4, 4707898), (8, 2353949), (13, 1448584), (26, 724292), (43, 437944), (52, 362146), (86, 218972), (104, 181073), (172, 109486), (344, 54743), (559, 33688), (1118, 16844), (2236, 8422), (4211, 4472)]