18163197

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{367}}^1$

素因数の和:439

約数の個数: 40

約数和(自身を含む): 29922816

約数和(自身を除く): 11759619

約数列:

[1, 3, 9, 13, 27, 39, 47, 81, 117, 141, 351, 367, 423, 611, 1053, 1101, 1269, 1833, 3303, 3807, 4771, 5499, 9909, 14313, 16497, 17249, 29727, 42939, 49491, 51747, 128817, 155241, 224237, 386451, 465723, 672711, 1397169, 2018133, 6054399, 18163197]

約数ペア:

[(1, 18163197), (3, 6054399), (9, 2018133), (13, 1397169), (27, 672711), (39, 465723), (47, 386451), (81, 224237), (117, 155241), (141, 128817), (351, 51747), (367, 49491), (423, 42939), (611, 29727), (1053, 17249), (1101, 16497), (1269, 14313), (1833, 9909), (3303, 5499), (3807, 4771)]