20692737

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:190

約数の個数: 48

約数和(自身を含む): 33965568

約数和(自身を除く): 13272831

約数列:

[1, 3, 9, 13, 39, 47, 53, 71, 117, 141, 159, 213, 423, 477, 611, 639, 689, 923, 1833, 2067, 2491, 2769, 3337, 3763, 5499, 6201, 7473, 8307, 10011, 11289, 22419, 30033, 32383, 33867, 43381, 48919, 97149, 130143, 146757, 176861, 291447, 390429, 440271, 530583, 1591749, 2299193, 6897579, 20692737]

約数ペア:

[(1, 20692737), (3, 6897579), (9, 2299193), (13, 1591749), (39, 530583), (47, 440271), (53, 390429), (71, 291447), (117, 176861), (141, 146757), (159, 130143), (213, 97149), (423, 48919), (477, 43381), (611, 33867), (639, 32383), (689, 30033), (923, 22419), (1833, 11289), (2067, 10011), (2491, 8307), (2769, 7473), (3337, 6201), (3763, 5499)]