20396948

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^3\times {\mathrm{211}}^1$

素因数の和:265

約数の個数: 48

約数和(自身を含む): 42383040

約数和(自身を除く): 21986092

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 169, 211, 286, 338, 422, 572, 676, 844, 1859, 2197, 2321, 2743, 3718, 4394, 4642, 5486, 7436, 8788, 9284, 10972, 24167, 30173, 35659, 48334, 60346, 71318, 96668, 120692, 142636, 392249, 463567, 784498, 927134, 1568996, 1854268, 5099237, 10198474, 20396948]

約数ペア:

[(1, 20396948), (2, 10198474), (4, 5099237), (11, 1854268), (13, 1568996), (22, 927134), (26, 784498), (44, 463567), (52, 392249), (143, 142636), (169, 120692), (211, 96668), (286, 71318), (338, 60346), (422, 48334), (572, 35659), (676, 30173), (844, 24167), (1859, 10972), (2197, 9284), (2321, 8788), (2743, 7436), (3718, 5486), (4394, 4642)]