20217106588

素因数分解:

$2^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{129097}}^1$

素因数の和:129179

約数の個数: 72

約数和(自身を含む): 44504728128

約数和(自身を除く): 24287621540

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 47, 49, 68, 94, 98, 119, 188, 196, 238, 329, 476, 658, 799, 833, 1316, 1598, 1666, 2303, 3196, 3332, 4606, 5593, 9212, 11186, 22372, 39151, 78302, 129097, 156604, 258194, 516388, 903679, 1807358, 2194649, 3614716, 4389298, 6067559, 6325753, 8778596, 12135118, 12651506, 15362543, 24270236, 25303012, 30725086, 42472913, 61450172, 84945826, 103148503, 107537801, 169891652, 206297006, 215075602, 297310391, 412594012, 430151204, 594620782, 722039521, 1189241564, 1444079042, 2888158084, 5054276647, 10108553294, 20217106588]

約数ペア:

[(1, 20217106588), (2, 10108553294), (4, 5054276647), (7, 2888158084), (14, 1444079042), (17, 1189241564), (28, 722039521), (34, 594620782), (47, 430151204), (49, 412594012), (68, 297310391), (94, 215075602), (98, 206297006), (119, 169891652), (188, 107537801), (196, 103148503), (238, 84945826), (329, 61450172), (476, 42472913), (658, 30725086), (799, 25303012), (833, 24270236), (1316, 15362543), (1598, 12651506), (1666, 12135118), (2303, 8778596), (3196, 6325753), (3332, 6067559), (4606, 4389298), (5593, 3614716), (9212, 2194649), (11186, 1807358), (22372, 903679), (39151, 516388), (78302, 258194), (129097, 156604)]