19890804968

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{991}}^1\times {\mathrm{132049}}^1$

素因数の和:133065

約数の個数: 32

約数和(自身を含む): 39298080000

約数和(自身を除く): 19407275032

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 991, 1982, 3964, 7928, 18829, 37658, 75316, 132049, 150632, 264098, 528196, 1056392, 2508931, 5017862, 10035724, 20071448, 130860559, 261721118, 523442236, 1046884472, 2486350621, 4972701242, 9945402484, 19890804968]

約数ペア:

[(1, 19890804968), (2, 9945402484), (4, 4972701242), (8, 2486350621), (19, 1046884472), (38, 523442236), (76, 261721118), (152, 130860559), (991, 20071448), (1982, 10035724), (3964, 5017862), (7928, 2508931), (18829, 1056392), (37658, 528196), (75316, 264098), (132049, 150632)]